The school in Dallas says, "students who dress and groom themselves neatly, and in an acceptable and appropriate manner, are more likely to become constructive members of the society in which we live."
That's why the 4-year-old with his hair over his collar was suspended for a month and now sits in the library instead of being in class with his buddies. His hair is too long, and he won't cut it. The dad says other kids have longer hair, and his kid is being singled out.
I don't know about that, but I do know that Einstein was a constructive member of our society.
I guess this is what "evidence based practice" means in Dallas. We believe what we believe, and if you disagree, that's evidence against you.