There's only one way to find out. . .

Yes

Only you are.

No broox, no :facepalm:

Ask your Dad.

It Depends if you're trying to join the mile high club or not...
Go nude or go home...

Yes. It's the international signal for "Sky Marshals come out of hiding"

Shirts vs skins flight. This should be a thing

You're allowed to wear flip flops so probably.

Actually that's one place your dad has not been shirtless. I say give it a try!

Only if you're allowed on airplanes.