How to delete your youtube account?

I am sure a lot guys are having a youtube account for collect, share, comment videos. May be one way, you will find you dont need a youtube account,do you know how?

1 After you log in, you can find this on the loading page,and find your portait,like the pic below

2 Click your portait, it shows the menus, and choose the “settings”, like the pic below

3 And choose the "delete entire google account" in the followin page,like the pic below

4 And choose like this as the below pic

After these steps, your youtube account are deleted. And it will never come back, so decide that whether you really want to delete it when you want to do this.