What age do guys need to grow up?
406342
Men gradually grow up.  My husband is more mature now then he was when I met him, but he still has a long way to go. Enjoy their antics and just laugh at him and say to yourself I am so glad I have my girl best friends.
469157
Males vary but usually continue growing until they're 25. Most men do not notice the difference in height from teen to 25 but it is there, even if it just means your legs or arms have grown. However for some the growth "spurt" is obvious and the height of the teenager can bare little resemblance to the height of the twentysomething...
411048
Growing up doesn't necessarily mean growing up as in height.  To me it's more about maturing.
666177
tell him to grow up and be a man or at least actlike one
294895
The average age to begin puberty for a boy is around age 11 or 12.  However, medically speaking boys should not begin puberty prior to age 9, but should have developed testicular enlargement by age 13.5 or pubic hair by age 15.  These are the "rules" to live by.  \n\nAs for when do boys begin having intercourse?  That is a different question all together.  While only about 1/4 of boys have had sex by age 15, well over half report intercourse before age 18.
693049
I think the first thing to do is to grow up, how old are you 12???
1156221
Depends on age, until he is in puberty, no otherwise maybe.
199241
Your penis grows as your body matures.  During puberty, men experience the largest gains in body size as they become men.  The penis can continue to grow until late teens as it is one of the last areas of the male body to completely develop.  All men are different and mature at different rates.
1155384
If the question is "How much longer before he is through puberty?", then the average age is about 17-19 for a guy.
132993
none.  However, the %age that grow up without knowing their fathers or having contact with their fathers is probably far too great, as it is in most parts of the world.
898238
You definitely can keep growing. Also, your brain will continue developing till you're 25.
297019
Why young guy? Ive found men tend to be more caring as they GROW up!
492786
You are born with gender. To become mature both man and woman have to grow up and learn life's lessons.
1177250
No.Girls are supposed to grow up 18 fast and thereafter slow up to 21.Thereafter it may remain there.
431294
I think you should tel him to grow up..
547277
Grow up and get a life.
445067
depends if he is young or old   but around 18...hell yeah