One thing that changed is that appliances that used to be simple and worked by using mechanical parts that you could see and replace are now just one more thing

One thing that changed is that appliances that used to be simple and worked by using mechanical parts that you could see and replace are now just one more thing with a chip inside. Watching a toaster work with the bimetallic strip that suddenly pops is appealing to the human mind in a way that "enh, it's just magic, like your phone" isn't.