Yeah, but my mom can’t do banking on a flip phone.
This is the issue. Everything sucks. Don’t complain that people make a determination to take the least fucky normal option instead of flashing privacy ROM of the week onto an old Nokia N95. Be happy they thought about privacy it at all.
You can’t participate in normal society without a smartphone. There are two options for normal people. Pick the least shitty one.
Normal people aren’t flashing custom ROMs. The audience for some FOSS software will shrink by several orders of magnitude.
But the pain really kicks in when your government/bank/streaming apps require attestation of a signed boot chain and Google Play services running.