Why not use a wide-angle lens for portrait photography?

1, people who shoot at the same distance with a wide-angle lens will be smaller and unable to express the characteristics of portraits. As shown in the figure below:

2. If you shoot at close range, the characters are easy to deform, the viewpoint is high, the head will become bigger, the viewpoint is low, and the feet will be elongated. As shown in the figure below:

3. Some people who need the environment actually need to use a wide-angle head. As shown in the figure below: