likes/dislikes are NOT inhereited....they are random

And is it jsut me, but every time I get a villager who dislikes Red, they are wearing red...

I want to know why so many of my villagers have no likes or dislikes, and then I'll get one or two that have two of each?!?
_________________________
Why is it that if someone tells you that there are 1 billion stars in the universe you will believe them,
but if they tell you a wall has wet paint you will have to touch it to be sure?