Why do everyone keeps asking the same question once my grandpa died?

Ever since my grandpa died last week, I’ve been getting the same questions, “How are you holding up?” Or “How you doing?”
LIKE HOW DO YOU THINK IM DOING? I just lost my grandpa and people expect to me to be happy and okay! Can I just have a day to myself and LEAVE ME ALONE?
One of my friends said our old friend wants to talk to us, the one that used to have a crush on me. Be better not ask me out.
Just leave me alone!

Why do everyone keeps asking the same question once my grandpa died?
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