To a lot of older generation people, overweight appears to be healthier.
My family comes from a town in central Mexico, not a lot of job opportunities or great healthcare. People who were overweight or obese were thought of as being well off financially and for men it showed that they have a wife who like to feed them.
Growing up with my grandmother, she loved to feed people. If you did not eat everything on your plate, she would have taken it as a sign that you don't value her anymore. So I was conditioned to want to eat as much as I could. For the better part of my life I was overweight 9yrs-20yrs
I recently started eating less and exercising more. Needless to say my grandmother was shaken by my weight loss. She blamed my mother for not feeding me :P