I would not have a problem with my child of 11 (of course mine is only 6 right now) going to a camp or clinic without myself or my wife. My wife though would disagree and plan on being nearby even if she could not be at the camp itself.
But I would never even consider both of us missing a meet. There will always be a parent there to see her compete, no ifs, ands, or buts.
Let me tell you why:
There was this kid that was raised to be very independent by his parents. He played high school football and was an all-state linebacker. He played hockey and was all-region and had he not gotten injured was all set to go pro. He ran track and for several years held a state record.
His parents never saw him in any of those. Not even once.
And it tore him up and caused major issues not just then, but for years.
I know we are talking about 1 meet out of many, and missing some is not any where near missing all of them, but it is still something to think about. We only have so much time with our kids, and if we take the time to be there and share in their success, and even more importantly their failures, we will strengthen our bonds and lengthen the time that they still want us there. Any coach that tried to interfere with that for me would get an earful.