Why not?
One thing was made painfully clear tonight while nostr:npub1hqaz3dlyuhfqhktqchawke39l92jj9nt30dsgh2zvd9z7dv3j3gqpkt56s, nostr:npub1v67clmf4jrezn8hsz28434nc0y5fu65e5esws04djnl2kasxl5tskjmjjk and I tried to split a restaurant check: Lightning wallets are not even close to being ready for adoption in the physical world.
Discussion
Because they’re generally unreliable. Doesn’t matter if they’re custodial or not if they can’t find routes, time out when trying to pay, or freeze for unknown reasons.