Kicking - (Soccer) Flick ups from behind

The video tutorial demonstrates how to position yourself with both feet on either side of a ball, flick it up behind you, and kick it on the volley without letting it hit the ground. The instructor emphasizes the importance of flicking the ball as high as possible to gain better control. This exercise is presented as a fun and effective way to practice ball control skills.

How high should you try to flick the ball up?

Why is it considered a fun practice exercise?