An analogy.
Say someone lived in NYC and made a choice to lease a 1998 Dodge Neon since they really didn't drive much, but wanted a car around incase they wanted to drive to Buffalo to see their parents. It wasn't a great car and it may have cost them a few dollars at times to change some engine parts, but by and large, it did it's job.
Suppose the federal government comes in and says, "you know what, we want everyone in this country to have a car that at least has automatic steering, power windows, a CD player, keyless entry and functioning A/C and heat.
This is good, since so many people don't have cars. But guess what, this particular individual's car doesn't have keyless entry nor power windows and their lease is cancelled since their car no longer conforms with governments vision of what they need in a car. On top of that, their new lease payment is now $150 more per month than their old one, which sucks because the law states they have to have a car now so they really have no choice put to pay up and get a car they really didn't want or need.
So the question is, why does the federal government get to say whether or not this person has a crappy 1998 Dodge Neon?