What percentage of ski slopes are public utilities exclusively filled with 2-ton+ iron skiers?

What percentage of car drivers do you figure weigh in excess of two tons and are made out of iron? The argument I'm replying to here suggests seatbelts aren't enforced self-preservation but rather enforced safety for others as if you don't wear one you could fly through the windshield AND hit somebody else

Skiing at excessive speed is "reckless skiing" or "reckless endangerment", which is minimally a fine and escalates to criminal charges based on severity in the same way that reckless driving does. In Utah, the class B misdemeanor could put you in jail for 6 months.

Okay so then flying through your windshield into somebody else because you didn't wear a seatbelt seems like it would be illegal even if seatbelts weren't mandatory?

Can't you just boil and filter creek water at home? Do we really need to get the legislature involved over a little giardia risk?

Is there a law against boiling and filtering creek water at home?