All of the cabinets in our TC use positive latches like these:
http://www.rvpartscountry.com/Hidden-RV-Door-Catch.htmlThe part that looks like a dozer blade is along the edge the door, out of sight and presses in within a routered part of the door frame. They will not open by road vibration.
I’m in the camp that is something is supposed to keep a door shut, and doesn’t that is at a minimum a poor design. Further evidence is the number of people who have had this happen to them. If positive latches are more expensive or a bit more difficult to operate (which is why I suspect they don’t use them), then at least use them on the cabinets that interfere with slides.
