My car is wrapped, that's 3 years / 90,000 miles ago, the paint looks brand new, not a blemish anywhere. I rarely wash it - perhaps a couple of times a year (just the bucket and sponge brigade at the Supermarket) if I have an upcoming "give a lift to some business people".
I don't worry about pigeon-poo marking the paint, and I live in the country, scrapes rubbing up against countryside hedges are frequent, I have had parking rubs too - paint from another car, or scratches on the film, I haven't even bothered fixing them with a hairdryer as they have disappeared by themselves after a bit (when car basking in the sun I assume).
My car is a Model-S, so very different sticker price, but much the same price for Wrap ... so financially an easier decision. Also Tesla's paint-over-aluminium is supposedly "soft" and that influenced my decision. I suspect it will be harder to justify price for Model-3, although there is the issue of the Tesla paint problem on the sills of Model-3 - which that will ultimately be an issue for Tesla warranty, avoiding the problem, at own expense, is probably worth doing ... for me the decision would come down to how long I think I will keep the car.
I went to
Topaz Detailing (chosen because they were very close to Tesla Heathrow ... they did an excellent job, and all the other cars there had another Nought on the price!!). They used pre-cut panel-pieces which may be important in choosing a fitter as I have heard that the other way is to stretch wrap onto the car and then use a knife to cut-to-size, with risk of a slip and paint damage.
I have a 1mm (or so) gap around the edge of some panels. That hasn't been a problem for me.
Or you could do your own PPF wrap?
or you can have a colour change and thereby make the car unique