That is such a broad question that it is hard to answer here. I will say that if he is your boyfriend and you are having these concerns, that it might be wise to go ahead and find another boyfriend. Dating is for finding out what we do and do not like about someone and if it is worth taking the relationship to the next level. If you have concerns about how he acts, rather than wait for him to mature (which frankly, may never happen)---- I'd say that finding another boyfriend that is better suited to you would be the right thing to do. good luck
Well, I'd say it depends on what it is he's doing.
My husband doesn't act his age a good deal of the time, but I accept him for how he is and really don't want that to change about him, even if it does get annoying sometimes, because things could be so much worse.
However, if he was doing things below his maturity level constantly, I'd simply confront him about it and try to solve the problem by communication. But like mami1323 said, that's a skill that takes awhile to master, which life experiences teach you.
what's he doing? Hell, I'm 60 years old and don't act my age..it depends on how far one takes it.
Jim
Well I'm not sure how old you are or how old your boyfriend is but men tend to mature later than women do. You just have to have patience and learn how to communicate. It takes a really long time to master and it's more about life experience than about anything else.