sent him a few satoshis, had him send some back to you, and then gradually moved him over to the mainnet.

No. That is the biggest mistake many are doing. The whole thing is to LEARN WTF is Bitcoin not how to throw some sats. Otherwise will remain a dumb fuck that will never know what really is Bitcoin and end up like this:

I do not want him to just use sats to buy gift cards, I want him to start a damn bitcoin circular economy, out of fiat.