>> Being educated is the default state of being.
No, no it isn't. Look around the world. Ignorance is the default state of being and continues to be the state of being in a lot of places.
>> An education is literally available everywhere,
You and I have different definitions of education.
>> and kids especially seem to get excited about the process.
Some do, some do not.
>> arents would have to explicitly set up an environment to prevent their kids from receiving an education of some kind, which, I agree, would be troubling. How realistic is that kind of environment though?
Very. Watch your cartoons and shut up.
>> Aside from that, it really is just a question of how.
It's really not, it's a question of giving access to learning to kids whose parents can't afford to educate them or don't care. There are a lot of these folks. In the days before mandatory education kids were put to work to support the family, social mobility was close to zero and... well it was Victorian. Compulsory education has been a huge step forward.