Discussions

Today's events have my hackles up: and I'm pretty angry at what has transpired.  
 
Back story: I have 3 children, and they often play with 3 children who live a few doors down from us. They run back and forth between our houses, they walk up and down the block, and they sometimes cross the street to visit neighbors on the other side of the street. They're never more than 1 block away. Youngest is 5, oldest is 9...they look out for each other.  
 
So, my kids and the 3 from a few doors down were outside playing today, they were within 1 block of our houses. A CFS worker who happened to be driving by stopped them and asked them where tehy lived...followed them home (to friends' house) and then told their mom that they were NOT to be outside unsupervised. The kids were not doing anything bad, just walking down the block, on the sidewalk.  
 
So, friends' mom came over and told me what had happened. Neither she nor I were aware that we couldn't let out children out of our sight.  
 
Does CFS make this crap up as they go along? Does this mean we have to sit on the doorstep and watch our children as they play outside with their friends? How much supervision before things get stupid? Perhaps we should tether our kids to the TV and not let them play outside at all?  
 
I'm a stay-at-home mom and I do check up on them regularly, but I think it's utterly ridiculous to expect Mom to directly supervise her children 24/7. Our kids know not to wander, and not to get into any trouble.  
 
Please enlighten me if I'm so far behind the times that this is the norm these days?