Well, any mother worth her salt has the answer to that non-question ... They are KIDS ... I've worked for senior partners who exhibited less maturity than those kids ... Scary, huh?
While I was stationed in GA, one of the common expressions I picked up was "some people's kids. . ." That expression was commonly used in response to hearing about general dumbassery that some individual had been a part of. The implication, of course, is that not every parent is equal. I can't guarantee that my kid will never do anything stupid (she will), but I'll bet she never does anything dumb enough to attract the attention of the national media.
That being said, your experience with senior partners is kind of scary. I have NO desire to EVER work in a large law firm.