This literally does not affect me in any way

Couldn't Steam/Valve just make it so that you can only buy AO rated games using your Steam Wallet? When you buy a game with your Steam Wallet, the purchase does not go through an external payment processor like MasterCard or VISA, it's all processed internally by Steam/Valve.

What are the odds of Steam accepting crypto payments in the near future?

This literally will have zero impact on me in any way