i think it is every parent's responsibility to pay for college if they can, but it doesn't have to be Ivy League, and they certainly should be expected to get good grades else the privilege be revoked. Part time employment is also good for college students, and of course, having kids WANT a few things is healthy. I consider the cost of education to be a LOAN (not a gift) which my kids will re-pay when they put their own kids through school.
Moderation is the key: why does it have to be all or nothing?