I do all my own motorcycle servicing, valve shims, throttle body balancing, brakes, suspension seals rebuilds tyre changes etc...
I enjoy it and I've acquired the tools to do it. I don't trust dealers at all. Too many instances where I've been charged for valve adjustments, but the com cover hasn't been taken off..or getting a bike back from a tyre change with 60psi. etc..
The car I take into the main dealers as it's just more convenient and I haven't got the facility or inclination to go sliding underneath...
Noew cars are just so difficult to access things now, I looked at my fathers Volvo V40 and changing the battery for him, no joke it involved having to refer to a youtube video for the process (not joking) which suggested allowing 90 mins to 2 hrs to change the 'easier to access' battery made me think about. To change the other battery in the car I was told would involve taking the front bumper off.
When I cosider an old Mini and we used to think how tight the engine was in the engine bay it now seems like there was so mauch space to work in compared to a 'modern' car where every single square inch of space is crammed full of something.