When you send 1,000 or 1,000,000 sats on lightning to your bar man or old lady at the grocery store (especially when using some custodial app), this isn’t “on-boarding”.
You’re just giving someone free money with no responsibility.
You have to show them on-chain layer one, and not just how to receive, but also how to send, how to save a seed phrase, and how to generate a new wallet.
Otherwise, they have no broader understand of what Bitcoin does.