If you want to appear older online you should write properly. Proper capitalisation and sentences make your text easier to read. As it is they look like an uninterrupted stream of consciousness.

This might also help you offline. Try to structure your thoughts before giving them to the world. This takes time but should go a long way on making you seem like you got your shit together.

ok, being honest here.

i remember you from a while back (old posts) and being straight up, you do seem kinda young and childlike. I do not know how old you really are, but if i was guessing, 14-16.

You are one of the very few users here on Lemmy I recognize, and it is not because you’ve been posting very intelligent things. In fact you posted this exact question once already (but seem to have deleted it by now).

I remember being 21 and I was more mature at 21 than you appear to be based on your post and comment history here, in fact I think I was more mature than you are now at around 14.

I don’t know your situation, but I’ve noticed that people tend to do this to people who act immaturely. Your writing style, especially the use of 3 exclamation marks per sentence seems quite childish. If you talk in a similar way, that might have something to do with it.

Did the answers you got the last time(s?) you posted this question not tell you what you wanted to hear?

Think of the people who seem to do this to you. Pick the one who trust the most. Now ask them.

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There are various reasons people may treat you as if you’re younger. I would bet the primary reason is no matter how much you think you’ve grown up, those changes have to be seen outwardly for a while before people that knew you as a kid will accept it. It took until 24 or 25 before I felt people had stopped treating me with kid hands. Keep in mind as well that as people get older, younger people start blending together a bit and a 20 year old does not seem as mature from a 30-40’s perspective. It’s similar to how younger people often have a hard time telling apart old people’s ages and they all seem “old”. The final point I’d make is that swearing isn’t something all adults do and is not related to maturity. It can be a sign of familiarity between certain people though. Swearing around family members is either something that comes with time or never, really depends on your parents/relatives.

Trying to push these issues in an “I’m a big boy now!” manner will generally backfire and get you treated young for longer, because it’s a very childish thing to do. I am not all-knowing so I don’t like giving absolute advice, but personally I think the best thing you can do is not worry so much about it and continue acting in a responsible manner. If you show yourself to be mature, others will realise and treat you as such. If they don’t then either you’re not as mature as you think or you should find someone who you can have a more level conversation with. It’s not so bad being young, anyway, “the grass is always greener” and you will miss it when people always look at you like an adult!

From what I can tell by your posts, you are treated like a child because you talk and act like a child. Have you tried, like, growing the fuck up?

Probably because you’re a child.

Sorry but I work with college students, if you’re not 25+ you’re another one of those children to me. Your writing style is very similar to theirs; it’s very stream-of-consciousness with overuse of punctuation to try and accentuate your “points.”

Grow up, get your spirit destroyed by the world, realize you can keep living without it, and I’m sure other adults will start to treat you like one.

If you just mean your relatives, it’s important to know that what constitutes ‘young’ changes as you age. As someone in their 30s now, early 20s and below feels young to me personally. If your relatives are much older than you, especially if they saw you growing up, it’s likely you’ll seem young to them forever. That isn’t to say you should be infantilized your whole life, but just that it stems from differences in perception. If you feel like you’re being treated lesser than other adults, try to tactfully explain how you feel. Maybe you’re feeling excluded and that hurts, or perhaps being called certain things is belittling to you. Ultimately though, the most important thing is that tact, because it’s very likely not malicious, your relatives likely aren’t trying to make you feel small or invalidated.

As for anyone else in the street, or perhaps online, there’s usually something that makes people naturally assume youth. I don’t know what you look like obviously, but online you typically have very little information to work with. Usually just the words that are spoken, and maybe an avatar to go along with it. A number of people have pointed out your typing style already. I won’t belabor the point, but I will say first impressions are extremely quick to make, and quite influential. I personally try to talk to anyone with tact and just ‘as a person’, but it’s something I feel doesn’t come naturally. I really only ended up doing it because I spent a long time in moderation type roles, having to mediate issues with people and events.

Tl;Dr: It sucks, but people probably aren’t doing it to hurt you. Talk patiently to them, also type more formally.

You should look into checking if you are autistic. We get infantilized a lot

You probably don’t mention taxes and stocks enough.

Also, phrases like “back in the day” and “in my youth days” help.

When you are with people in person, try to sit straight and when standing/walking try to look like a superhero all times.

People mature at different rates. There are myriad reasons for this. But it’s OK to be a little bit immature for your age. There’s no shame in it and it’s very common. Being an adult mostly sucks, anyway. You’re already aware of it, so that’s a good thing. Pay attention to social cues and behaviors of your peers and you’ll figure it out.

It might be the group. I worked for a place that had The A Team and everyone else. The founders of the company treated everyone else like crap.