It is not all that difficult to come up with a crypto debt card. Atleast for our own token, we can make a debt card and have it available to all Indians - and as liquidity makes way, the debt card can be used till the liquidity runs out.
The problem is with the legal side of the system. Recently I had a long chat with a supreme court lawyer and an expert on company rules and we concluded that such things where crypto is connected with currency - is not going to see the light of the day.
Now that the crypto bill isn't coming, atleast not in this session, so everything will remain in the grey area for the time being.