To be fair discs can be painted from factory, brembo discs are for starters, comline I’ve also used are painted.

i don’t think he’s wanting to paint them every time he stops driving 🤣

paint them, then on first outing be aware you’ll be rubbing the paint off the discs, I’m guessing they will be new pads and discs anyway so you’ll be bedding stuff in.

it also depends on your driving, hammerite may burn off if you get the brakes really hot, VHT paint might be necessary if they are.

the paint may stay in grooves if prepped properly, I’d be inclined to use a thinner pant than hammerite tbh.