So, I attend a regular nursery rhyme session at my local library and 'The Wheels on the Bus' now seems to comprise the above delight, together with the equally offensive "The Daddies on the bus go shush, shush, shush"
I'm really bristling at this example of everyday sexism. Yes, I am a mother, but I am also educated to Post Grad level and have a bunch of fairly heavyweight professional qualifications too. Prior to having DD, I held a senior position in a very male dominated field and really resent the implication that when a woman (who may or may not have children) speaks, it should be assumed that it is mere 'chatter'. I'm also really unhappy with the idea that a big manly man has to step in to shut up all these hysterically chattering women, otherwise where would the world be, eh? 
AIBU to take this up with the library/council? I just don't want DD to face the same constant battle that I did, to be taken seriously in life just because she's a woman. I think we owe it to the next generation to challenge this trivialisation of women's opinions.