We have the body we have.
Tall, lean, lanky, or short and compact, pear, apple, big booty, thighs of steel, whatever.
It doesn't matter, it's what we have.
I have found it very interesting to observe all the different body shapes and types.
In reference to the OP, there is a gal who comes to my gym, who is about 5'0" and built like a brick s**t house. In way good shape, I'm talking, competition level, bikini, lifting shape. She has no thigh gap. But, she can do a 36" box jump!
I do have a bit of a thigh gap, but I wonder. Some genetics, maybe partly lifestyle, been riding horses and long as I can remember. Then had twins that were over 6#s each, that will stretch the ole pelvis.
For myself, my body is what it is, big ole long, manly arms, big bosom, it's ok.
What amazes me is what it is capable of!