This. I worked at a small cell phone repair store. We could replace lots of parts in say an iPhone 7, but nearly no soldering. Parts are relatively cheap (lcd might be 35$ for the 7 when I was there) - and we were only paid up to 12/14$ an hour (that's nearing McDonald's level).

There is little proper education for something like BGA soldering, and if there is then you're more likely to get a job as an engineer.