It is a really interesting idea to use crypto card. But the problem is that in some countries cryptos are not accepted by shops and supermarkets. Such cards won’t be widely used and convenient just because of mentioned situation.

What are the daily limits for withdrawing funds guys from such cards? Does it depend on card issuer or ATM? Just wonder how can someone go in cash big sums e.g. $100k?

Maybe add a feature that can transfer funds to another card holder using the site online or using the ATM machine. The market for Bitcoin debit cards is not yet exploding right now but there would come a time when it would be an standard to carry. Bitcoin is still in the investment/speculative stage and people are holding on to their Bitcoin in the hope it would continue to rise.

Wait for the value to experience some plateau and that's the time we can see the rise of Bitcoin card services to offer convenience and better rates. You have to compare what you can offer with the rest of the competitors so that you can come up with your USP (Unique Selling Proposition).

Will you not try to explore the path taken by Monaco Card?

Sorry if my question is stupid I was just wondering is there a difference in security of funds on a sidechain and drivechain?

(hypothetically) When I die I'd like my children to have all my bitcoins. So I was thinking of writing a will to give each of them equal amount but to make it more fun I'd hide the keys from my wallet and make it a quest.