Non-chain shops might be better. I'm learning to service my own bike because the cost of labor and overhead is really high in the US compared to where I got hooked on road cycling (Vietnam).

I have a lot of tools that I got so I could service my bike. Now, the industry has moved on with various sizing standards and these tools will be useless when I get a new bike.

Going to suggest high schools add a bike repair class/course. They can work on bikes students bring in, get the knowledge they need to fix their own bikes.

I would actually write to trek about that. The shop here in SF seems pretty solid, but I don't currently have a Trek bike, so I might be wrong. I agree with you on the analogy, but I'm pushing for the apple-store parallel. No serious computer nerd would use an apple-store as a serious place to maintenance their laptop, but novice to intermediate computer users would, even if they have to go back a few times.