YC is already changing a couple of variables in the funding function, so it probably makes sense to try and not modify the others, if they can help it. Also, 20 somethings are going to be pretty happy in places like Boston or SF. They're fun places to be at that age.

Once you start getting older, though, you either have a lot of money, or those cities are just too expensive. And even with a lot of money, they're a rat race - a millionaire stuck in traffic is just as stuck in traffic as the minimum wage worker in the next car over.

So I'm happy to see someone giving that kind of model a go and wish him the best of luck.