>When fat people lose weight, they still look like fat people with deflated skin
What reason do I have to get in shape knowing this?
The skin shrinks. You get some bunched-up wrinkles here and there, but no big deal. Usually saggy skin is just more fat clinging to the skin and not the body, so it hangs. If they lose that fat then the extra skin is paper thin before skrinking.
The problem is stretch marks. Scars everywhere.