I like to inline skate for exercise. Some refer to it as "rollerblading". Do you like to inline skate?
No, I can't skate. Never could. I always watched my friends do spins and flips and here I was , unable to keep my balance. haha
It is never too late to learn. I actually never learned to roller-skate. I got my first inline skates as a child and have done it ever since.
My mom bought me a pair when I was younger, it had a rubber stop block attached to the rear of one skate. It didn't help lol
Yeah, that is very common for braking. The pros can brake by putting one skate sideways but I never learned that technique.
It's awesome that you can do it at all! I've seen vert skating done in gymnastics before. 
I've always wanted to try ice-skating but I'm afraid I would end up on my posterior. They say it is quite different than inline skating.
I'm sure there are a few similarities, but ice skating probably is much different.
I think there is a lot less friction so you would have a hard time slowing down. My fear is slamming into someone or a wall, lol.
Its hard to believe there are people so good that can land numerous and difficult tricks like spins and stuff.