I am new to raising chickens and I have 4 kids under 6 yrs old. I am wondering if it's OK for the kids to play with the birds. I try not to let them chase them. The chicks are 4 weeks now, so I'm hoping they will be a part of the family. Do we need to be extra careful with handwashing? The kids don't really get to hold them much, but they love to bug them. How do your families interact?