Thanks. Indeed, in future, it would make more sense to open lightning channels than to store in cold addresses.

I agree that Bitcoin will ultimately be a settlement layer only. The TX fees will simply price out normies from cold storage, who instead will hold spending money in lightning, and main stack in an account at a fedimint or a BTC bank.

Securing BTC on-chain would then be a significant event, used for inheritance / moving large amounts / specific reasons.