We all largely interact with the same or similar services every day, so it's no wonder we all end up with similar experiences.

Thankfully, I don't have to deal with this every couple of days. Dad rarely ventures outside of his comfort zone, so needing to help him with some website is a very rare occurrence. Grandma is mostly fine so long as absolutely nothing changes. While they don't change every day, they do change every so often, in ways that I have to really focus to even see sometimes, but which apparently instantly throw her of her trail (while at the same time she's incapable of reading an error message that takes up a fairly large portion of her screen! I'm baffled to this day, but there's nothing that can be done about it). If her online bank and the few other services she rarely interacts with never change in even the slightest way for the next 20 years, I'd imagine I'd never need to be her tech support again, barring the batteries in her mouse dying again, or her computer itself kicking the bucket.