moms and or dads do you let your kids play house/mommy&daddy

I was molested when I was younger by an older cousin under the impression that we were just playing house, so I don't let my kids play it. It bothers me when kids play house, but specifically Mommy's and daddy's. Even if I haven't seen inappropriate touching or anything else. Other house roles are fine but mommy and daddy are off limit. My question is am I being to over protective because of my own personal experience?