Some old people over the age of 60 make fools of themselves by imitating young men in dress.

Answer

Rasulullah (Sallallahu alayhi wasallam) said:

"The best of your youth are those who emulate old men, and the worst of your old men are those who emulate your youth."

When an old man endeavours to be 'young', it indicates two things: (1) Senility in his brains, and (2) Drift away from the Rahmat of Allah Ta'ala. May Allah Ta'ala save us from the evil our nafs and the snares of shaitaan.