I have a few chips, most from trauma.

I would try to not have condensation on the cabinets if there's anything you can do about it, but I would bet that your chip is from someone slinging a dish around too casually.

There are companies that come out and do touch up.(And, they also told me that they would clean the cabinets too.) We had damage to a corner of a cabinet when the cabinet next to it had to be replaced because the size was wrong. They gave me a thick touch up filler stick and a small bottle of paint. I have use the stick and it fills in nicely. I think that this is just one of those things with a white kitchen. No one but me would notice every little tiny chip or ding. And over all, the kitchen still looks great.

I painted my kitchen white in 1987 and had no dings in the paint. The cabs were stripped, sanded, primed, blah and painted and stood the tests of time. They held up very well. The kitchen was built with the original house in 1960 so the wood was well dried and whatever other qualities a good house gets.

I have a few small chips near the heaviest working areas of the kitchen. Nothing terrible and luckily I have a 5 year warranty from my cabinet maker on the finish so I just send the panels back to him for a day or two to fix the issues when needed.