How will a common guy use Lightning Network when BTC hits 10 mln$? If BTC hits 10mln$ and transactions fees will be horrendous denominated in $, how a &quot;common guy&quot; will be able to opt in using Bitcoin, if even opening LN channel will be too expensive then since it requires on-chain payment? As I understand the only way for him would be to rely on third party which would'nt be very different from using a bank.
I assume that people will have more refined ideas by the time this would actually appear on the horizon, but here are some ideas:

channel factories
Custodial Lightning Wallets, i.e. &quot;Lightning banks&quot;
atomic swap from a payment focused sidechain
purchasing spendable LN balance on other users' Lightning nodes via macaroons that permit spending a specific amount

Or more generally, I suspect that people would develop third layer solutions that permit multiple users to share Lightning Network channels effectively.