Please let me play multiple classes.

[Slate]

This is incorrect. It doesn't take longer, it isn't possible.

This post is just incredibly ignorant. No where have I said "I want my gear now". I am more than willing to put the effort in to get the gear, but the game will not allow it.

it's possible, but you have to have patience:

the capacity to accept or tolerate delay, trouble, or suffering without getting angry or upset.