I somewhat agree with you. Although that was the object of GT in the first place; to blur the lines between virtual and reality in not just visual aspects, but also in characteristics.
Ofcourse the aim of any sim is to blur the lines between virtual and reality but only in those aspect where it matters in a videogame, the driving/racing experience, the closer it gets the more it's a simulation (and that means getting multiple elements like for example physics, visuals and sound working together as best as possible).
That means you get
part of the sensation of what it's like in real life but at no point of playing GT5 I was ever in doubt I was driving an actual car instead of a bunch of pixels.
There are ofcourse additional elements to enjoy in GT5 besides driving and I actually like the fact you have to change oil at regular intervals and that any new car needs to be broken in just as it is in real life.
To be honest, I could however do without permanent power loss after a certain amount of mileage for example, I know it's realistic but right now it just seems like a chore without the GT Auto engine restoration actually restoring your engine when it happens (only those restore tickets do that and they are in short supply).
Adding things like changing wiper blades which is relevant in real life but just trivial in the context of a videogame (and even when it does have an effect, it just becomes an annoyance instead of a real attribute).
They need to focus on the core of what's enjoyable to experience and not overcomplicate it by adding things which clearly aren't only for the sake of realism which they can never fully replicate anyway.
Another thing, having all this additional maintenance and caring/being responsible for your car stuff would perhaps not be that bad if your garage included only 1 or 2 cars but unlike real life most GT5 players tend to own hundreds if not over a thousand cars.
That's the nice thing of videogames, playing out your fantasies as realistic as possible without having to worry about mundane stuff, my fantasies don't include changing wiper blades.