Think of how long it took for people to go from barter - to gold / silver / coins - to paper money - to.....

BTC / LN / Whatever. Still young. Things will work themselves out. Even now, LN being below 2021 is not a big deal to me. The BTC price vs USD is also way below 2021 so perhaps, people are not using LN because they are sitting on their coins. Or, perhaps spending $0.40 to make a TX is not a big deal to a lot of users so they stay on the main chain.

-Dave