In my own class we had 2 out of 11 leave after our CA-1 year. One guy who didn’t match ortho, started anesthesia, then left because he got a urology spot. Another left to do psych and is now a very successful child psychiatrist in his hometown. Both were actually good friends of mine. When I was a ca-3, the CA-1 assigned to me for his first month left to do medicine after 2months of anesthesia. He’s now a very well regarded interventional cardiologist at the same hospital I currently work.
The point of all this is to illustrate that people leave for a lot of reasons. The residents involved were all great performers and nice guys and I personally couldn’t have been happier with the program. That people change their mind is not a sign that there is anything amiss.