This isn't anything odd to me, but it's probably because I live in Utah.  My boss has six children, my 35 year old coworker has 8 (9 actually, one died), and many of my friends growing up had 6 or 7 brothers or sisters.  I knew one girl in my grade who was the youngest of 12.  We were an "odd" family with only three!  I can see benefits to having a larger family...but I'm content with my one 
  
sexymama, that is a brilliant way of handling the babysitting.