Because nothing says ‘intimidating’ like skateboards.
They were 90’s before it was cool.
Nothing is more terrifying to Ultron or the Red Skull than the sight of Cap and the Falcon, riding into battle on their cool skateboards :D
Yo, those are FUCKING HOVERBOARDS!
WHICH ARE LIKE 5X COOLER THAN SKATEBOARDS.
YOU CAN’T STOP CAP WHEN HE’S GOT A HOVERBOARD!
GONNA TRY THROWING DOWN SOME STICKS TO FUCK UP THE WHEELS?! YOU FUCKING CAN’T!
THAT SHIT IS FUCKING FLYING.