Anything under 1M sats should be using lightning imho. Especially in high fee environments, it doesn’t make sense to be making small Bitcoin transactions without at a minimum funding new channels.
Discussion
I think LN was a night development, but I disagree with mass adoption... It's just not reliable. It must and it will get replaced by something better. Hopefully soon.
*nice development
I disagree about the reliability issues, but I do agree that it’s a bit technical for most people and would struggle to scale to more than a few hundred million people in the current way it’s constructed.
ECash has a better chance at making it to 100% mass adoption (assuming that people don’t just prefer Bitcoin banks) but that would still use lightning as a gateway in most successful models.