
It would take years to onboard 1 billion people to custodial lightning. Specifically, if 100k transactions per day are possible, in a year we can onboard 36.5 million people (and that is only if every single transaction is dedicated to opening a lightning channel). It would take 30+ years to get 1 billion people on custodial lightning ... and this is an optimistic estimate! surely people will use custodial solutions, but then why use btc rails at all? just swap to stable coins, or some other chain for small txs.