I mean…

My banks in the US and abroad all require 2fa and some of them are app-based 2fa not just SMS. All traditional banks- no neobanks.

Some government services require apps or the experience is infinitely worse without a smartphone.

Do we need the newest/fastest/best? Probably not, but I don’t see any major mobile OS making software more efficient for older/ lesser hardware and if you try to hold onto your old phone eventually it will be vulnerable to attacks after support for it ends.

It’s gross.