I notice it more at the Gym. I go to 24 hour fitness and the daycare center is packed on weekdays. Lots of 30-something gals look like they spent an hour and a half getting ready to work out. They get some time away from the kids, and it's social hour, etc.
And, yea, kids work better than dogs. The younger the better. I've got a 2 year old that is an absolute lethal weapon when it comes to getting smiles from the ladies.