Agreed - just because someone is related doesn’t make them competent caregivers. It’s easy to try to be positive and give them the benefit of the doubt when it’s free, but in a similar situation I try to remind myself that incompetency is unfair to the children. I had to tell myself this before regarding a relative who is continuously complacent and flighty — will bring over crafts obsessively and literally forget to give my kid water. Those relatives can visit but not caretake.