...so she WAS educating him about his culture/religion.

I, too, know of many Muslims who send their kids to parochial schools in the USA -- precisely because they find it a better education for their children. It doesn't "turn them Christian". On the contrary, most I know have been left feeling even stronger about their own faith -- and in the process, they've acquired a solid knowledge base about another faith such that they can debate and discuss it very intelligently.
Win-win.

"If you're looking for sympathy, you'll find it between sh*t and syphilis in the dictionary."
- David Sedaris