I teach A LOT and will always oppose a pay for instruction program.

Yes, the hobby shop, the manufacturers, the plane builders (commercial) all make a buck so does that make it right to charge for instruction?
How about telling a new flyer that the instruction is free because they already had to pay enough to get into the hobby.

I look at is as I am helping a new friend to enjoy a hobby that I personally love.

I have been instruction people to fly since I was a teengager (34 now) and I dont care whether they come out with an ARF, a Kit they built or one they bought a garage sale.

The dedication they will grow to have with the hobby will come from good friends that they share the hobby with.
If they leave the hobby after a year.... So what.
People find other things to do to occupy their free time.

Will that stop me from teaching new people after that?
Nope!