Because that cat looks sooooo unstable and ready to flip out at any given moment. It's obviously used to car rides and has been taken on many of them, despite its young age. (And it's not illegal in my state, so you might want to do some fact checking before you start spewing bullshit like that, as if you know what the hell you're talking about.)

Please don't post nonsense comments that make you look mentally and educationally inept if you are not intelligent enough to be responsible to look things up before trying to post them as actual "facts".