Hi Frank, some spammer is using my name and asking people to contact who ever that is. The profile pic and name also looks like me. Reported it to medium.
Regarding your question, I can only think of my own grandmother. Drop a bomb right next to her house, she still wont leave. As she grew old so many people tried to move her out of her house for her own good., as it was a big house and she had trouble with her knee. She refused to budge. She was born there and she stayed there until the very end.
I think most of the people who chose to stay are the ones who do not have the means to leave. It will happen easily. Even the ones with transport would have gotten stuck in the villages closer to the border very easily, as Ukraine blitzed through the territory on the first day. I will be worried about driving my family through the frontline and choose to stay for a while and then try to leave later. It is a complicated decision. That is why you need those humanitarian corridors, a safe zone for people to leave that wont be touched by both parties.