Well, naturally, that only implies the welfare laws and taxes should change as well. For instance, whether you get welfare or not shouldn't simply be determine

Well, naturally, that only implies the welfare laws and taxes should change as well. For instance, whether you get welfare or not shouldn't simply be determined by your income, but by an actual analysis of your circumstances: it should be provided based on actual need, not numbers. The problem here is that it is a very major change, and it may cost a lot and take a long time and a lot of consideration, and that might make it politically untenable.