Apparently you become a crotchety old curmudgeon WAY earlier than you think.

A new study found that more than one out of three people stopped wanting to try anything new in life by the time they turn 25.

That includes refusing to try new foods, travel spots, hobbies — or even making any new friends.

The main reason people get so set in their ways is that they don’t have any inspiration to try anything new.

The number two reason? They’re afraid of being laughed at.