Lol - I have heard comments like this in my social circle - it isn't necessarily aimed at child free parents - I love to observe ppl and I find this is a common when a SAHM re-enters the workforce then I've seen them say it (in a nice way) to say, a non working mom or a parttime working mom - I have also seen SAHMs say the same to working moms - I just wish everyone would get along minus the barbs