I think it's swings and roundabouts. Some days I get lovely comments about my son and his chatting (we were delayed on a train for a considerable length of time, and he was happily chatting away (with me, and anyone who showed an interest)
And some days I get tuts and comments for not disciplining him if he is gdoing something someone takes exception to, noisy or otherwise.
I think look at the bigger picture - if you get a combination of comments and most pf them over time are good, then you're doing ok, and it's just grumpy people, if, however, you ONLY get negative comments either a) rethink your parenting style or b) consider some potential SNs (if you are already doing ALL you can to mitigate) or c) you live ina very grumpy place!
I actually DON'T think this country is all that child friendly, child provisioned, yes, friendly no. I compare largely to NYC, which is NOT famed for child friendliness OR provision, adn yet EVERY place we went in staff had a smile and a few words to share with ds, customers were friendly with him even subway riders!
in this country, diners in restos glare at you before you've even sat down to eat and ds has said or done nothing, ditto tube passengers, by and large. So, no I think that while we do have betetr provision for children, we are not very friendly about them