A very illogical end to the whole story.

IMHO, ending was dictated by the "public interest". Some kind of message "outcast will socialize, or will lose everything". Bad end for good movie.

I guess you didn't understand what the movie tried to show.

Indeed, as I was watching it, I also felt bad. I was expecting he'd accept living on the community for the sake of his daughter, or she'd choose to go with him.

But what the movie shows is that we must follow our own path instead of follow others', even when that signifies going apart. Then it shows how to let a loving one go instead of forcing him to follow you.

The movie doesn't enter in details but it says the father went to some war and survived. He learned how to live on his own on the woods, and he got some unknown trauma that makes he not sustain living with other people. He can talk and interact, but not live. So he couldn't stay, he'd stay there with her if he could, but couldn't.

Tom knows that, she tells him she knows he'd stay if he could. That implies that he's not good on expressing his feelings in words but by their bond she knows him. She doesn't have the same trauma, but she lived with him because she liked living in the woods. But on the 1st encampment she tried already tried to adapt, still she chose to follow him when he left. But then on the 2nd encampment for some reason she liked there and wanted to stay, so she didn't follow him anymore.

What I didn't like is the lack of explanation for what she liked there. She just did and decided she wanted to stay there and that's it.