will the devs have an option for a debit card? Maybe with time but probably not in the beginning I think. Anyway, let's see how the people will react when the business goes live. But adding a debit card could speed up the process.
You mean integrating debit card with DarkPayCoin? It's a good idea and all but remember we need first to find an offline business that are willing to accept DarkPayCoin debit card first, I think getting some online shops first to accept DakPayCoin is a better move. Online first then offline. The idea is to get enough people using DPC first, and then after that debit card might come or might not come --- according to what the market dictates. Nowadays people rarely use cards anymore honestly. People are moving toward "alipay like" payment method which is online payment.