Grizabella
and have a spare deck handy for when I run into that girl that 'has always wanted to learn'.
What about having one handy for that guy who 'always wanted to learn'?
When I first got sober, I wanted very badly to have the AA book. It cost $5 at the time and I didn't have two pennies to rub together. But I was told that if I wanted one badly enough, I'd figure out a way to get one just like if I wanted sobriety badly enough, I'd do whatever I had to do to stay sober, too. The same applies with Tarot. If they want it badly enough, they'll figure out a way to get their own deck.
What's that got to do with your question? Well, I guess encouragement that you don't have to give a deck to someone who wants to learn, you just have to be sure you're good enough to charge money. If they're dedicated enough to learn, they'll get their own deck.