Would this be a good invention?

Question

It is a regular roller skate, but it has those wheels sortof like on shopping carts (but smaller) so that when you turn you can spin all around and turn easier. I also need three good ideas on why this should be patented.

Answer 1

sounds like fun :)

Answer 2

That would be impossible to balance on and would be very dangerous

Answer 3

I don't really think so.

Wouldn't they be nearly impossible to balance on and stop on?