I don't see what's hard to understand about it.
Just like skating there are all ages and skill levels and people ride in different styles.
People also associate skateboarding with being young, it takes tremendous effort and alot of kids do it.
Obviously their target audience wouldn't be the anti-scootee.
I'm not one to watch scooting religiously but the video was cool. No denying the skill there.
The scooter really isn't anything like a skateboard, it's more like a metal ski with handlebars or a standing mini bike.
I really don't care what people do, I feel so kung fu when it comes to expression. It's a way of life and nothing else matters. People do what they like and that's cool.