"What is the worse thing about being young?" asks the old boy. Homework, says the young man. "What's the worst thing about being old", asks the young man. Not being able to do things I could do before, replies the old boy. "Ah, like you can't bend down and get stuff off the floor!"
These, and more things talked about by two boys, one with red hair and one white with 57 years between them, in a video by Facts. Watch out for that heartwarming ending too. It might tear you up a little.