[meepmorp]

My kids realized April fools day wasn't funny no later than age 6. What's up with the guys at CERN?

[acuozzo]

Awareness and appreciation of the utility of humor increases with age and/or maturity.

Ms. Super-serious "I'm in university now and no longer find fart jokes funny" is liable to enjoy them again in her golden years.

There's no surer way to project a lack of self-assuredness than to be the stiff incapable of chuckling at a harmless prank.

[meepmorp]

> Awareness and appreciation of the utility of humor increases with age and/or maturity.

Exactly, and what I'm saying is that an understanding that April fools day isn't funny is a sign of maturity.