What makes a man or woman immature?

Sexual comments all the time. At that age I swear, the guys I hung out with made sexual comments all the time, Immature.

I would say the career, which some people still like to live with mommy and daddy. True, if they are going to school or can't afford it, then save up, but some just like someone waiting on them and cleaning up after them, and you have to wonder "what is their problem?"

Also, everyone has something that most people will find immature, like cartoons, or getting drunk and acting dumb in front of other people. (been there, done that)

One thing that puts me off cause is if they are mean to other people! Ugh I don't like bitchy guys! : (

I would say the way that they deal with certain situations, like if they get upset over something stupid then that's being immature, but that's just me.

This goes both ways (guys and girls,) so don't raise a lynch mob and track me down.

Okay, first up: Not knowing when to take responsibility for your actions.
Second: Not knowing when to take something seriously, or when to joke around.
Third: Not being able to look at all sides of an argument before making an opinion.
Fourth: Making a judgment about someone's character, and then when finding yourself mistaken, being incapable of change.
Fifth: The inability to admit mistakes or faults in actions.
Sixth: The inability to have fun with life (everyone needs it, not everyone has it).
Seventh: Selfishness.
Eighth: Arrogance. I was going to put a certain NY billionaire with a bad hairdo's name here, but I think that that would put me as being immature too.
Ninth: Inability to forgive other's mistakes or faults, however glaring they be (hence the lack of arrogant billionaire's name. )

I'd say that that's the gist of what I think. If I think of anything more, I'll make a comment.

Not thinking before acting, or not thinking of the possibilities of future consequences of present actions.

Like: in school, when handing in homework, "the dog ate it! " All those lines like that, doesn't matter what situation, those kinds of lines are all immature, when you can just be honest: "I didn't do it. " When your just getting excuses from someone, that's immature.

Like the "it's not you, it's me" line. Well, okay if it isn't me, then do explain where you went off course. I can understand levels of attraction between two people, and the differences among them.

And cheating and things like that, why put yourself in the situation anyway. If you get the feeling of temptation and things like that, just let it be, back away. I know sometimes it's a lot harder than that, but.

And then there's things like drinking and driving; "I only had two beers!?! " But it still impaired judgment, liable to cause a mistake.

These kind of things are immature, I think.

It depends on the age and the expected maturity level that comes with the age group.

For example: at 15, you are expected to obnoxious, rebellious and dress goofy. All of those are acceptable characteristics of a 15 year old. However, hearing the words "Butt head" should not make you LOL like it used to.

However at the age of 19-20, you are expected to start moving towards a more professional look and to be able to have a better social awareness then you did at 15 but you can still get away with talking about how drunk you got the other night and discuss the many stupid ways to play beer pong.

At 21-24: You start moving towards your career phase and at this time, you shouldn't be using slang words with strangers, drinking is no longer a topic start with everyone you meet and overall your social construction of how the world works starts to unravel.

Something like that, you get the picture. At every age range there's acceptable ways to talk and think, while there are also expected maturity to be present as well.

In the end, our age marks and dictates one's maturity level.