Personally, I'm doing it mainly because everyone else is (stop laughing, it's an important heuristic that should only be overridden when you have a definite reason).

Most smart people I know think that "because everyone else does it" IS a definite reason.

Information and education should be free

Why? People don't value what they get for free. Education was once valued very highly by the common folk in America. That changed once education began to be provided as a right, and children were obliged to go to school instead of its being a sacrifice on the family's part.

That's very selfish

You say that like it's a bad thing. I am neither a Randian nor a libertarian, but comments like yours push me closer to that line every day.