Because it’s home and often the only thing people have.
You see people refusing to be evacuated despite the obvious dangers and it’s why there’s been net immigration back to the country for many weeks in spite of all.
The govt is trying to get women and children to leave Kherson at the moment before the inevitable counter attack reaches the city proper. Even suggesting to go via Crimea into Russia.
Better than be used as a human shield.
When Kherson is liberated the atrocities uncovered there may make Bucha look like a picnic