Why do some people criticize chubby people for trying to lose weight or get fit?

I’m 5’11 and 201lbs. I starting weight was 218lbs so I lost 17 pounds. My family doesn’t like when I’m trying to lose weight and even my friends told me I don’t need too lose weight and I carry it well. My best friend isn’t a huge fan of me losing weight. She said a lot of women KILL to have a thick curvy figure and I’m tall which is a plus. She said I have most girls dream to be tall and be curvy.
she told me if I lost more weight, I wouldn’t look as good and not everyone is meant to be thin. My mom said some people just look better heavier and I’m one of those people. She keeps reminding me that I’m tall and I am supposed to weigh more than petite women and I honestly look very good. People can look healthy when they're a little overweight or large. I had an eating disorder because I was sick of being thick so I went from 199 to 120 and I ended up in the hospital and I had to put on the weight back.
I ended up being 218lbs because I work and go to school. I have no time to workout. Why aren’t most tall, chubby women allowed to lose weight?

Why do some people criticize chubby people for trying to lose weight or get fit?
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