Yes I like your idea a lot re: having Bitcoin and LN just another payment option like Cash App, Venmo and Paypal.
That's our biggest demand when it comes to e-commerce. Businesses want to get paid and attract new markets, and bitcoiners are seen as a valuable and loyal market.
We should keep in mind the additional cool stuff you can do with Lightning too to boost engagement through sats rewards and boosts too. It's really cool UX that isn't available with other tech.
Lastly, hopefully, one day, login with Lightning could be part of this appeal too.
Great response 🙂