That's a nice story. It is truly a good feeling when you get someone in crypto especially during months where the market is going up lol.
I've had the opportunity to do it a few times and it just so happened that it was the right moment for everyone involved. Although I do regret not being more convincing about it some of these times so some of them wish they could have invested a bit more right now 
But at the end of the day, as I say to everyone, it's their money, their responsibility, and their choice.