This is an amazing suggestion. Steemit is becoming more and more its own independent community, and if the debit card is created (the photo looks really cool) , the sky would be the limit. I am new here so I can't give a comprehensive reason on how it can be done or by whom, but I fully support the project and really think it would be an incredible feature and a massive step forward in the right direction for this unique community. I will be happy to offer any help (like researching etc) if needed.