That pic was just too good..perfect depiction!
To the OP: You are probably a novelty to the mums around there hence they didn't know how to react. The funny thing is the school my daughter attends hardly has mothers coming to pick or drop their kids hence when I occasionally go to pick up my girl and I get there early, I'm the odd one out with all the dads around and need to stand there awkwardly..not that its an invitation for them to talk to me as I cherish being ignored in this case!!