I bet the ortho that didn't think you kid needed braces was close to retirement and didn't think he could complete the case before he hung up his shingle.
You might be correct but my kids got their braces on in February and their first followup visit was in May. I found this odd because it seemed all their friends with braces were going once a month for adjustments. My kid's appointments were spaced out for every 4 months.
Like I stated, their teeth were pretty straight but I was told they had a small overbite that needed to be correct. Since I couldn't really tell a differnce once they came off, I don't think they really needed them in the first place but that is just my opinion.