you can't put a wise head on young shoulders
you can't put a wise head on young shoulders
proverb A young person cannot be expected to have or display the wisdom and sound judgment of an older person. I know that you can't put an wise head on young shoulders, and yet, I still get so frustrated with my son and the ridiculous things that he does!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.