I took ds to the dressage yesterday. 
Selfish? In the sense of being too wrapped up in myself, yes, guilty. In the sense of thinking sod everyone else, well, no. If I had been in my right mind, I wouldn't have done it.
But I wasn't in my right mind. Mired in PND, I haven't been much further than my own four walls for the past three months. I was offered the ticket at the last minute, and I was desperate to go. I had no childcare options. I thought to myself 'for once I'll be brave and do what other people do, and put this baby in a sling like everyone's been telling me to do, and go and do this thing.'
It was only when I got there and other people took one look at ds and said 'blimey, you're brave', and I realised that no moving around was allowed between horses, and the crowd went silent during each performance that I thought 'Christ on a bike - this is insane!'
fortunately, ds sat contentedly on my knee for the first few horses then nodded off. When he woke and showed signs of grumpiness, I immediately fed him, which shut him up.
I'm posting this not to try to defend what the parents of the tennis baby did, but to suggest it could just have been stupidity and lack of thought as it was in my case, rather than a sense of entitlement or 'little darlings' attitude as some on here have suggested. When you have a small baby and are sleep deprived etc, it's easy to make bad decisions. I'm feeling pretty bad about taking ds yesterday after reading some of the comments on here [resumes hermit existence].