> I struggle to imagine it replacing a plumber who comes to your house and fixes your pipes, or a waiter serving food at a restaurant, or someone who restocks shelves at grocery stores, that kind of thing.
These are three totally different jobs requiring different kinds of skills, but they will all be replaced with automation.
1. Plumber is a skilled trade, but the "skilled" parts will eventually be replaced with 'smart' tools. You'll still need to hire a minimum wage person to actually go into each unique home and find the plumbing, but the tools will do all the work and will not require an expensive tradesman's skills to work.
2. Waiter serving food, already being replaced with kiosks, and quite a bit of the "back of the house" cooking areas are already automated. It will only take a slow cultural shift towards ordering food through technology-at-the-table, and robots wheeling your food out to you. We've already accepted kiosks in fast food and self-checkout in grocery stores. Waiters are going bye-bye.
3. Shelf restocking, very easy to imagine automating this with robotics. Picking a product and packing it into a destination will be solved very soon, and there are probably hundreds of companies working on the problem.