[.EJ]

Hmm as for the bank idea. It could be easily executed by incorporating electronic banking. Your trainer card could double as both your ID and bank card so whenever you win/lose a battle you automatically gain/lose money.....actually that sounds like I just came up with some head canon

But yea, at the beginning of the game you could sign up for your bank to receive a percentage of your winnings in a Savings account. Even though this will never happen ;_;