what kept Collin Gosselin from entering the marines

Collin Gosselin said he was discharged from Marine training after the Marines reviewed his paperwork and found he had previously been institutionalized as a child , which he said was enough for them to remove him from the program.

What he said happened

He told reporters he was very close to graduating when the review happened, and that the prior institutionalization was the reason given for his discharge. He also said he is appealing the decision.

Background

The situation traces back to his childhood, when his mother, Kate Gosselin, sent him to an institution amid family conflict; Collin has publicly described that period as part of a difficult home life. Public coverage in 2024 framed the Marines’ action as tied to that history rather than anything he did during training.

Bottom line

So, the short answer is: his past institutionalization is what kept him from staying in the Marines.