Valve is not Google of games, the app stores Google and Apple has dwarfs steam sales and the individual game consoles are similar size as the steam store.
> I'm paying with my phone anyways
Right, since the phone ecosystem is large enough to be its own payment processor, unlike steam.
Also Google Play store might have more consumers and or sales but they are of worse quality. It's scummy, it's exploitative. The whole system is propped up by whales decieved by gambling mechanics and deceptive ads. It's nowhere close to real world economy. Valve is much closer. Despite using Play Store since it came to existance I never paid for anything on Google Play because I don't trust it enough to add a single payment method there.
I don't pay with credit or debit card for steam, I can use Blik, which is paying with my phone or one other payment processor, but I'm not in USA. This is USA problem.
And what in your mind is the thing banks will be begging Steam to be let in on? This reads like payment processing fan fiction.
I don't trust Paypal, at all, because its brand is damaged beyond repair, but I would put enough money on Valve account to do all of my online shopping with it if Valve did even just what Paypal does (even without connecting Visa or Mastercard directly).
Even if 100% of Valve's user base cared as much as you (they do not), why would Valve take on the massive risk of connecting to its users' bank accounts? Of having to collect on debts? etc.
Of course.
> Of having to collect on debts?
Why would they need to do that? "Credit" part of credit card is completely irrelevant when it comes to payment systems. It's a trick to milk the customers. Why would Valve lower themselves to that level?
My point is, with crystal clear, pro-consumer reputation Valve could be real alternative to gambling industry of Google Play store, payday loan business of VISA/MasterCard and gym membership style of extortion of other services. And betting on consumer was a recipe for success for Valve so far.
Why would they try? Because it's always good to 10x your revenue.
Gaming is the business bigger than movies, music and books combined and Valve is Google of games.