Why is CSRF disabled/not used when working with Ajax?

Question

PHP

I often see most examples where CSRF is not used/disabled intentionally when working with Ajax, but it is not explained why. Actually the question is why? Because it's more convenient to work with and CSRF does not create many problems, or is there no need for it? Doesn't disabling CSRF when working with Ajax reduce security, or am I wrong?

Answer 1

Because krivorukov and do not know how to make friends ajax and csrf-token, I see no other reason.