The last time I remember getting that look - the one of mixed pity and admiration - was back in 2010 in London. I got on the tube with all five of my kids (then aged 6 months, 2, 4, 10 and 13) and I actually noticed some people counting us on and off again!
Today I was alone in Silverburn with four of my kids and my two Danish nieces Ursula and Elisabeth - so I had a 14, 9, 7, 6, 4 and a one year old in a buggy. A number of people looked at me as if I was barking mad and of course given five of the six children were girls, I think Léon got even more looks of pity than I did! :-)