Nannies

I don't think so. We (three school-aged boys) used to go to the parks (social area). Every now and then the kids would have friends over - so I would sometimes have three to four 10 & 11 year old, two 7 year olds, and one or two 4 year olds. It might be different for if you are caring for younger children. I never thought to check the DNA for nannies. I had a job offer for 4 girls under the age of 3 - turned it down for the 3 boys as I didn't want to drive the kids around!