My family is stuck with the idea that beans are good and beef/pork is bad. But that is a mindset of growing up poor because beans are cheap and plentiful carbs when you are in poverty.

And when you are in poverty you are malnourished so the beans are not going to do great harm. It is when you have a proper diet that you don't really need that much beans in your diet if at all if we are to be honest.