dont let it put you off. its just wear and tear. BUT a major factor is in the prep process, if you get a prepper who cant be arsed and just gives them a quick sanding and whacks a ton of primer on, they will flake, and they will flake in no time at all.
if you go somewhere that take pride in their work, and they really do, then it will be done properly and it*shouldnt* flake for years and years.