There are many ideas why i think people don’t help other people out!
-wanting to fit in
-fear of (their help/advice) getting rejected
-fear of responsibility if they do help/give advice
-they’re having a rough time and need to take care of themselves first
-unsure if they’ll make the situation worse or not
all of these are reasonable explanations why people don’t help other peeps out, and very rarely it would be in bad intentions.