Then it's best to buy a condominium in Berlin Mitte on the third floor with an underground garage, there are no trees there. Anyone who buys a house and does not want any trees, bushes, or anything else nearby, with all due respect, hasn't got a clue.
It's not about leaves and foliage, it's about the mentioned possible bird droppings, waxes, or possibly falling branches or similar.
On black painted cars, for example, every scratch is visible, and the paint can also be damaged by these influences.
And not everyone doesn't care about their car, even if it's a utilitarian item. My husband thinks the same way; his cars are important to him, and he regularly asks me to avoid parking under trees if possible.