I would not waste any KYC-free BTC to train someone. Once they accumulate, they can self-custody their own sats from the corporation. At the end of the day, they would simply be buying from an exchange, as almost all banks can only act as proxies with a simplified UI/UX.
Discussion
I had success explaining self custody to normies by simple analogy. It's like holding a gold coin vs. having paper gold. After that everyone understands that it's better to hold the real thing. Then they can go and buy from an institution.