Some less-scrupulous detailers (especially those selling ceramic coatings) have been telling customers that Tesla paint is especially bad, especially "soft", or otherwise prone to degrading. Some even tried to claim that because the car is built in (painted in) California, that the paint isn't as good as cars painted elsewhere due to California's environmental regulations.
This is all untrue. As
@Akikiki mentioned, all manufacturers have had to change paint formulas over the years, but the worst times were back in the early '90s (you've probably seen plenty of peeling white, silver, and blue paint from that time period).
At some point, people at Tesla got offended by the badmouthing and had us write a customer-facing Service Bulletin saying that the paint is equal or superior to other premium brands, and that it doesn't need overpriced coatings or anything else out of the ordinary, just apply a quality wax periodically. As an indication of how Tesla differs from other companies, the original text the lawyers wanted to use was super-snarky, and the technical writers actually toned it down a lot before publication.
I don't have the bulletin number, but I'm sure it's available on
https://service.teslamotors.com/ (not that I'd recommend buying a subscription for this, but if you already have one...)
Note that I'm not claiming that ceramic coatings are worthless, just that Tesla paint is at least equal to other brands, if not superior. And if a detailer tries to tell you that your car's paint is uniquely inferior and it's going to horribly degrade unless you buy the magic product they're selling, keep on walking.
