Playing devil's advocate... Does transacting on lightning really help keep miners sovent, though? I understand opening and closing channels, but in a world where bitcoin is a commonly used currency, custodial lightning wallets will almost certainly be the most commonly used method. Transacting on chain would probably be "reserved" (using the term loosely) for relatively large, important transactions.

Maybe I'm totally off base. I don't know. I use Bitcoin (big and little "B") however suits me best in the moment just like anyone else would. Some earn and spend it, some buy and spend it, others save with it. What they choose is none of my business. That's the beauty.