No shelter is a fun place to live.

Also, domestic violence shelters are always full and always have waiting lists.

You don't live in a domestic violence shelter just because you feel like it.

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If you have never lived in a shelter, you probably don't realize how unpleasant it is.  Nobody who does know talks about it because nobody wants to seem ungrateful or be characterized as ungrateful, which is the rest of the world's instantaneous, disapproving reaction.