With her dad prob about 2 yo simply as no reason to leave her overnight until then
With a non parent not until she was 7/8 yo.
Ex's parents are older and quite frail and wouldn't have coped with her.
My parents she was never left with as I am a survivor of csa and dad was the culprit. So she has never been left even with my mum as I couldn't trust her cos she didn't believe me still doesn't
She was eventually left overnight the first time with another relative who knew the history and believed me and I knew I could trust them.
I was still extremely anxious which they knew and they reassured me plenty that night and subsequent nights.
This meant that I then felt comfortable with dd going on sleepovers to friends around that age/a bit older. But even then I was very careful who she stayed with. Her best friend at this point where I was lucky was dad was a cop and mum was a sw and that's who she went to stay with for first sleepover. I even confided my situation in the mum and she gave dad the heads up too (with my permission, I just didn't feel comfy telling him f2f)
I didn't want to pass my fears on to dd and wanted her to have as normal a childhood as possible but I also needed to know she was safe.
I still didn't sleep that first sleepover.
She had a whale of a time every time and didn't notice I was so anxious.
It's incredibly hard to leave them but they have to have a normal childhood too.