I used to ride.
Scares the bejeezus out of me to see them riding. Falling off at even 5 mph can cause significant damage.
The helmets and pads would help some, but if the head hits a curb or God forbid, a car hits them. Skull fractures, broken legs or broken arms. Look at the jersey numbers and make sure we all PRAY for good fortune.
On the other hand, they are young and invincible and have to have a little fun, right. Like I said PRAY!