To be fair its not like that. Nearly all phones now last an entire day where you leave in the morning and don't think about it until you get back home. Because of that charging at work, car etc is just a bonus and not a necesity.
Just a few years ago every time I got a new car I would make sure to transfer all my charging cables over because even if it had 1 charger built in, it wasn't always the fastest. Now I don't really think about it unless it's likely to be a long day into the night, or a heavy day.
I'm not saying we can't manage, it's more that we have got use to not having to charge, Going back to looking at the battery and remembering to charge isn't comfortable for some people.
Similarly with the cameras, we all got use to not worrying about it. 5 years ago the person with the newest camera in the group took the pictures and sent them to everyone on a night out because of low light performance, now everyone takes their own pictures and the latest camera is only so slightly clearer.
Going back to one camera you DO have to think about lighting again.
These aren't deal breakers, and yeah first world problems, but still no one likes to go back to a problem they thought was fixed forever and had left their mind already.