Or just do it yourself. At least oil changes can be done entirely oneself with a very small number of non-specialized tools. You don't even need a house with a garage, you can do it in your driveway or even on the street if you only have street parking.
As others have pointed out, tires are somewhat more complicated, but not entirely out of the realm of the home shade tree mechanic, if you're willing to invest in a few specialized tools/fixtures.
Unfortunately, there are some apartment complexes, HOAs, and city ordinances that prohibit people from working on their cars, which means either needing to find a legal place to do your own repairs or paying a mechanic. I’ve lived in apartments my entire adult life thus far, and every lease I’ve signed has prohibited me from repairing my cars on apartment grounds. I have no choice but to either find a friend with a garage (not easy in the Bay Area when most of my friends can’t afford garages) or taking my car to a mechanic and paying Bay Area labor costs.
Those rules are usually intended to prevent people from having a derelict car up on blocks "under repairs" for weeks or months at a time. No one will notice or care if you do a quick oil change.
You know you can just break the rules when it comes to petty stuff like that, right? If you're not being unreasonable or thumbing your nose at them they typically don't come after you.
>and every lease I’ve signed has prohibited me from repairing my cars on apartment grounds.
This is a direct result of the clean water act and knock on laws.
The clean water act mandates stormwater management. The solution needs to be maintained in perpetuity. The HOA is the entity saddled with this. There's various engineering calculations that go into pollutant load which impacts the size of the stormwater bullshit engineered ponds you need. In order to make the solution they are forced to build cheaper, the developer puts "no wrenching" (and a bunch of other things) in the initial HOA covenant.
The city ordinances are mostly the same. They're putting that shit in their so that the engineering numbers are better and their stormwater stuff can be cheaper.
That's not to say the snooty jerks don't like those rules for their own sake.
Locally to me, it’s pretty uncommon for any mechanics, tire shops, etc. to give any sort of timeline for any sort of service.
I recently had a 1-hour job done on my car - the only appointment my local mechanic takes is for a specific date - you drop off first thing in the morning, and they call you when they’re done.
I also just called my local tire shop to enquire about mounting/balancing (but not installing) tires - they don’t take appointments for that, but also don’t guarantee any particular speed of service - you drop off your tires, and they call you when they’re done, whether it’s that day or the next.
It's not that it takes all day to do the work. It's that you get to your "appointment" and they really haven't set aside any time for you. You're just put in line like the next walk up guy.
As others have pointed out, tires are somewhat more complicated, but not entirely out of the realm of the home shade tree mechanic, if you're willing to invest in a few specialized tools/fixtures.