The concern is that people don’t understand that none of these wallets provide true ownership. Those who are new to the concepts of bitcoin and are onboarded through fully-custodial or semi-custodial Lightning wallets sometimes find this out the hard way. There is no way that the entire world will ever be able to use on-chain self-custody.
Discussion
No issue with them getting onboarded to fully-custodial or semi-custodial as long as they are provided the proper education during the onboarding
“Here is some sats on lightning. You still don’t actually own the bitcoin but this is better than keeping them on an exchange. Now that you have skin in the game, do the work to understand bitcoin and learn on chain self-custody”