In the US, this would require approaching a bank (or other money issuer like PayPal) directly and asking them to sponsor the proposal.
I would suggest starting with a writeup explaining how it would benefit a money issuer to hold a balance in Steem, and what value Steem has both within and outside of the community.
As I have said many times, Steem is different than bitcoin because it is attached to a real product that generates value in addition to having the scarcity and security of other cryptos.
Here is a useful Quora Article on getting this sort of thing done;
https://www.quora.com/How-do-I-issue-a-debit-card