This is called living in a society.
As such, we regulate how much noise you can make, whether you can carry guns around to shoot someone when you don't agree with them, vote on a certain day, get your car taken away because you drove drunk, the list is long.
In a perfect world, you could do anything and everything, and personally in reality, nobody gives a rats butt if you decide to drive down the road standing on the seat of your bike, and doing a handstand....IF......doing so didn't endanger others, or cost ME money when your wife goes boohooing to the government because YOU left 3 hungry brats starving just because it was your right to have a brain fart. Now your into MY pocket...costing my city, county, state and federal government MONEY.
It's all about the money, and personally I don't care if you want to exercise your right to do stupid....but don't do it on my dime. Hopefully if you do it right, it is quick and messy, but putting a helmet on, as we all know will save a dozen lives from the slow speed crash to the lucky son-of-a-gun who went flying thru the air with the greatest of ease...and lands on where his brains are most of the time he is going down the road with no helmet.
We don't let people exercise their rights to smoke in my face, shoot at my dog, or drive 600 mph on the interstate. We give up those individual freedoms to live in society that says, you can do this, but you can't do that. YOUR choice is to go live in outer mongolia....and feel free to eat dirt...nobody then cares...and your precious rights will never be infringed upon.