Holger Dansk wrote:

What makes it incorrect? What makes the lack of a slouch superior?

The same thing that makes walking with a drooping gait not the proper
way to walk unless you are trying to look like a clown.

Who are YOU to define what is "proper" and what isn't "proper" in
walking or any other activity, racist?

I'm someone who knows the proper way to speak and walk and sit and
behave. I grew up in a home and all of the family knew these things and
associated primarily with other people who do.

So you can't explain it even the slightest bit?

You stand up straight when you walk.

Does he? How do you know?

Everyone should stand up straight when they walk.

Do you even see that this is completely circular?

Chris