Ren Allen

"Because he was a bit
unsure of how you keep grades in unschooling and a bit skeptical that
she may not pass SAT's if she chooses to go to college some day."

Ah, but one doesn't need grades to succeed in college, if that's what
they choose. Truly.

If he read about some older unschoolers, maybe he'd feel better.
Google Laurie Chancey or Peter Kowalke for starters. Laurie is after
her masters degree right now, after being radically unschooled her
entire life.
And tell him not to feel bad about spending money on things you ended
up disliking, that's called learning. :) Kelly Lovejoy calls them
"learningtakes" instead of "mistakes". I love that.