All the more reason for user replaceable batteries.
I replaced my Pixel XL battery earlier this year, still works great as a backup and/or hacker news browsing device.
They're not very difficult to replace.
Grandma isn't replacing her phone battery anytime soon. It wasn't that long ago, replacing a phone battery was as easy as replacing the batteries in my tv remote. Even grandma could do that.
U can buy her a fairfone :D It's battery can be swapped like in old times
It wasn't so long ago there were local repairmen grandmas took things go fix.