new laqckiert and protect with paint protection floli

Hello boys and girls. I’m just having my thick repainting and then I want to “conservate” the heckfender against damage and scratcher with a clear-sighted paint protection film. today I called a company that would make such discs foils and labels, whether they would do this to me. the “master” said: NO… he didn’t follow up parts, because the foils, when glued, would not let themselves be removed without damaging the paint. Is that true? or does he just don’t want to do that? he said he only foiled cars that were painted on the factory side, because the paint is supposedly baked harder than with the paintr around the corner. is the stupid or is that true? gruss bb-blue