The players are allowed to change absolutely anything like height, weight, hand sizes, butt sizes, and many more with the help of the body presets, Sims 4 that you will notice in the article below. They could make amendments in their way to create a unique sim. But, presets and sliders allow gamers to define their characters as they want.
It is an extension made by either the creators or fans who love the game and want to add something new. Mods are alternatively an addition to the game that might change or add some things, which is not a part of the vanilla game version. We have always come across different types of mods that make the game extended and vivid.