Howdy!:wave
Okay, first off. That's not a stupid question. I am the queen of stupid questions, so I'd recognize one.
They do make latches that hold the doors open that you can get at any RV place.
Like you, my '89 doesn't have one either. I was going to put one on, but I
hate drilling holes in my trailer. So I have a couple of things that I use. When on soft ground I have these cute little yard art stakes that I stick in the ground. One is a flamingo, another is boots, then there are my flowers. Problem is they don't work on hard surfaces. Sometimes I prop it open, other times I use bungees.
I am going to do the latch, though. I just need to work up the courage to drill into the
fiberglass. :o