How to draw legs

Legs...should be drawn like this

😂😂😂

My only issue with tutorials like this is that they don't explain what and why they're doing what they're doing. Why put the circle there? What is the buldge coming out of one side of the leg but not the other? Obv I know the answers but just something to consider

我的眼睛毫无疑问地学会了

靴下と靴を先に描く方法も教えてください！

This only works for one style and one style only

the first leg are better the second one looks AI

He is a legendary Japanese manga artist.