Good to know 👍.
If you have the tools then most bike maintenance can be done faster than the time it takes to take you bike to a shop, wait for the repair. And then go collect it again. You’ll actually most likely save time (And money)
I'm sure that is true for most people. However, I sound a bit like @Whorty - I'm more likely to try my own repair, cock it up and have to take it to a bike shop anyway. Now I have the time, I should really do a maintenance class but I don't know if that will ever happen.