Well, according to Dictionary.com:
tu·i·tion [too-ish-uh n, tyoo-]
noun
1. The charge or fee for instruction, as at a private school or a college or university:
2. Teaching or instruction, as of pupils: a school offering private tuition in languages.
3. Archaic. guardianship or custody.
So, was the OP offering guardianship? :)
Bob Bone