You’re assuming that everyone has your knowledge. I don’t. A lot of people don’t. That’s why I’m asking for recommendation for local experts.
It’s an axiom of mine that there are a thousand ways to do something, but only one or two ways to do it right.
Don’t know how old you are but it is kind of fun to learn. Doing mechanic work on your own can be a lot of fun, sometimes aggravating but you get a lot of experience and first hand knowledge. There were times when I was working 12 hour days at the plant I didn’t have time to do my own work so I relied on auto shops to do my work. Most of them are shysters, there are a few good ones but most of them are just part changers and really know very little. Most of them are on commission and the more they find “wrong” the more money they make, even if the work isn’t needed. Dealerships included, they are just as dishonest like many independents.