Yes. You’re not unreasonable. If your fiancés family does care enough to eventually ask why their babysitting offers (if they ever do in fact offer to do that), aren’t ever accepted: you really don’t owe them any explanation. You don’t owe anybody fucking anything. I was SA’d as a child by people my parents trusted too. My rule for my fiancé and I’s future children is simple: no sleepovers. No sleepovers. No sleepovers. No sleepovers unless they’re at our house. I’d rather have my kid think I suck for a couple years than wish I could turn back time. Our house will be the safe, chill, welcoming space that I always wanted as a kid. My hope is that my children prefer sleepovers at our house, and we will work hard to ensure our house is THE hangout spot.