1. Bike helmets are required in about half the states:
http://www.ghsa.org/html/stateinfo/laws/helmet_laws.html
Based on your IP, if your nephew lives in that state, or most of the neighboring states, his parents should have known it was the law & could have simply used the "I know you don't like it, but it's the law."
2. Saying they're not well off... and a couple posts later, whining about the price of gas to drive to Target?
3. Agreed, you sound kind of callous toward your family, but I understand that if circumstances have been similar over the years, it's kind of natural.
4. I'm really, really annoyed that there are people with children* who don't have health insurance for the kids. There's no excuse.
*I make exceptions for the Amish. They (at least the ones around here) pay their medical bills. Going to a benefit auction for that very purpose tomorrow. Might buy a storage shed or something - great Amish family; I chat with them frequently.
One of the daughters cracked her head open, flown by helicopter, emergency surgery, etc. The whole Amish community comes together to help - sort of like an insurance policy - they pool their risks, but don't keep the money quite as liquid, though it only took 2 or 3 weeks to organize the auction.