Hello everybody from Italy; new to the forum.

Straight to the point: my Brompton's rack is quite worn and scratched (actually the whole bike is. I got it used from eBay and it wasn't as pictured).
So: I am considering painting it to give it a new shine.

I am wondering if that could be a good idea, though. As far as I know, Brompton racks are always sold unpainted and perhaps there is a reason why (being prone to bump into plenty of stuff, maybe, the painting would wore off too easily?)
Or, maybe, painting could be just effective and there's some other reason (market strategy?) why they don't sell any painted racks. Dunno: I'd love to hear your advice.
I would spray a primer on it and then a spray paint for car bodyworks.

Thank you!