Segwit is not being adopted. And LN will be largely a niche gimmick. We need something that works across the board, something that, unlike segwit, is NOT OPTIONAL.
Make non Segwit opt out and there's most of it cleared up. Same as organ donation. They flipped that from opt in to opt out recently in the UK. I expect many more people will be sliced up and glued into other people in future and rightfully so.