this might be an older thread, but some cars have complicated procedure to change oil, so it may be worth to have a professional do it, however other fluids dont have that much of a complicated procedure. I would also recommend transmission fluid be changed by professional too.

Some fluids you can change yourself. Tyres defintely fill up yourself regularly.

Its the same thing with changing the battery, the computers get wiped with no power which can cause the car to run poorly so need to be powered with the engine off but you can change it yourself if you have the right tools and knowhow, but transmission fluids and for some cars for engine oil, it can be very messy and complicated to change yourself.