Well it depends on who that person was. If it was someone your own age they probably don't like that your different and maybe because あなた don't like the same things as them. Being mature is always good. I am told different things, that i am really life smart (I doubt that) that i'm like a little kid, and that i'm quite mature in my ways. I don't know who i am but i guess i'm a mixture of both. I am the same age as you, but it depends on what your like. If あなた are like me and just don't like it when people act like four 年 olds that fine. But there is a boy in my class and he is a bit too mature sometimes, like he wont let the class have a joke and if someone does a little thing he tells on them (that could also be counted as immature) I'm rambling here but basically i'm saying if your the type of person who pretends they know everything (which i doubt あなた are) and act like peoples parents then i would say あなた could probably loosen up a bit. If あなた are just into older stuff like different music, clothes (depending on what type) and different ideas of funny then あなた are fine. Okay my ramble is finished*Everyone cheers and pushes me off stage*
babina, I think that xXSweenyXx is trying to say that he's a bit annoyed with あなた not using capital letters where they belong. That's fine though. あなた type that way.
It depends on the type of people あなた hang out with. If あなた hang around kids who act like they're 10, you're probably in for some trouble as their immaturity will really annoy you. However if あなた hang around people who are as mature as あなた are then あなた should be fine.
Maturity is usually a good thing. It means you're responsible and likely don't go into ランダム outbursts for the smallest inconvenient things. Or...something along that line. Besides, judging あなた right now (since I don't know you, its not going to be completely accurate), あなた seem slightly childish. あなた use a lot of exclamation points, laughs a bit, say "btw" instead of the entire thing, and apparently typed "think" instead of "thing". I wouldn't worry about not being fun または whatever あなた might associate maturity as bad.
