I haven't even bothered to wash my cars in the past ... occasionally had them Valeted if I had to pick up someone important from the station for a business meeting ...
... but I figured spending £100K on a car might need a different approach, and I would be more likely to get annoyed at stone chips on the bonnet ...
... so I had it wrapped (some sort of very-robust cling film). I think it was about £1,500 for front-facing surfaces, and £4K for the lot.
I was side-swiped by a big car (Range Rover type) on a roundabout, pulling away from lights, at relatively low speed. Side of the car looked like it had been scraped down a brick wall, but when I got home I washed it (yeah, made an exception just this once!) and there was no paint damage at all, and some scratches self-healed. It did have a couple of minor-ish dents,which did have to be repaired, but from a distance you would have been hard pressed to known anything was wrong. I was impressed ...
I think that translates into scratches from hedgerows, where I snuggle up to avoid someone coming the other way, will be fine.
Bird Poo (still needs washing off, but not so urgently, and worst case just replace the Wrap on that panel) and stone chips are not an issue.
Car is easier to clean, but I still don't bother ...
There are other coatings etc. available, but Wrap is the only one I know.
I felt decidedly poor at
the Detailers that did the job ... everything else parked there was an order of magnitude more expensive!