Where did I suggest their personal experiences were a representation of anything? Are we having a debate? If not there is no fallacy.
You stated it as a counterpoint to what I said, as if to neutralize it by saying your kid had the opposite experience. We'd have to get him on here to confirm that because I don't think you speak for anyone else, even if it's family.
The majority of people who have done military service came out changed people as opposed to how they were before enlisting. That may not be true of 100%, but let's put it at 90%.