Not sure which country you are speaking about but in the majority of the countries in the world they're not. Those jobs are severely underpaid. Also if supply increases, demand also decreases, hence leading to further loss. Imagine the level of hopelessness, anger and despair which is already the case in the avg population because of inflation etc, if their jobs are suddenly automated. Bank tellers weren't educated to become Bank tellers, They could move on to other front desk jobs. But things corporations want to automate with AI are basically the core of many people who got educated for that job. The change you are talking about is not gonna switch easily. We don't have to sit in an Ivory tower and say, "change happens", you can't just make an entire generation to become educated for something and just drop em.

Note I said lots of options, not no options. Also, especially electrical trades is quite skilled these days and might not be for everyone either.

I talked to someone running a warehouse a couple of years ago. They got containers packed with cans from abroad. The cans had to be put on pallets so the warehouse robots could store them.

So they had one guy who's sole job was to pack the individual cans from the containers and pack them on pallets. The guy doing it loved it. He put on his music and packed those cans, not having to interact with anyone for most of the day. The mindless job left him free to ponder (he read lots of academic articles at home). So, great for him that he found that job.

However, the warehouse robot means there's like 10 people working that giant warehouse instead of several dozen...

Electrical trades have been sliding up the skills scale. I don't know about plumbing, but I'd guess they also have to deal with more and more automation / electronics