Okay. How does that trump an individual’s right to choose?

Well, if you “choose” to put a million or 2 $ in costs on us,
in hospital / nursing-home costs,
and you “choose” to not pay taxes for the rest of your life,
then I think we should have the right to “choose” to simply not bother offering first-aid,
let alone ambulance or hospital services,
to anyone who isn’t helmetted:

The *increase* in costs per non-helmetted rider is significant,
and if you pay that increase in advance ( and show that you have, perhaps a special license-plate ),
then fine,
but if you don’t,
the What Give You The Right To Put Those Costs On Us?

Choose, but pay for your choice,
or get off the planet.

Same as other kinds of “choice”s.

Drive drunk?
get locked away. Period.
( should be put to work, to pay for the prison, too. )

No seat belt?
If you get thrown through the windshield ( a friend of mine did it ),
why should we pay for you to have 24h care for the next decades?
( including a breathing-machine, due to the broken neck )

No sympathy for Deliberate Ignorance, aka Won’t Know, is “deserved”…

( equally, if someone pretends they “didn’t see” the motorcycle they hit,
remove their license for life — no driving with your brain shut off.
You drive, you’re responsible. Across the board. )

Cheers.