Exactly. I got my first motorcycle when I was 12. Fifteen motorcycles later I rode for over 50 years. I retired from Harley Davidson as a Master Tech. I had two crashes and walked away from both of them, although had I not been wearing a helmet, I'd probably be dead from brain swelling.I've ridden motorcycles since the late 1970's.
The primary reason you don't see air bags on a bike is that the rider is not strapped to the motorcycle. In a crash, the bike goes one way and the rider goes another. An airbag would serve no purpose...
Far as an airbag on a motorcycle goes, that has to be one of the most moronic ideas I've ever heard. Obviously this person knows nothing about motorcycles, NOTHING, probably has never even sat on one, maybe has never even touched one. That's the problem we have with too many things today. Geniuses like the OP thinking up utterly absurd ideas for things they know nothing about.