Well, my children are complex, difficult cases to treat, for reasons I don't know if I will fully understand.
My oldest kids were on abx for years, too many years. For the most part, I consider them abx failures (especially the second kid). I deeply regret them being on abx for as long as they were.
To be clear, I'm not against the use of abx. I am very much an advocate of finding what works for you individually.