Don't know, still have the same problem. You figure it out and let meh know :)
because your too old
You cant change it, if you really want to change it the only way to do it is to delete your account and to do that you have to go to manage account, delete account, give a reason, and boom you have deleted your youtube account.
Because it can give you access to comment, subscribe, see 18 and up videos, and rate too. Plus other stuff you can do there. If you don't have one you cant do all of that. Also so you can sign up with no problem. Just go to create account and there.
Press on anything and do anything you wont are you serious you cant
i cant login to my account even though i typed in my email and password..
you have to make a new account so alright i have answer ur question.
You are not old enough
Look it up on youtube and you might find it or its just that you cant.
You can delete youtube comments by clicking remove next to your comment, but only on your own videos. You can delete coments on youtube if they're on your own videos by just pressing delete beside the comment but if its not on your video i think you just can report abuse or spam or whatever it is that you will like to remove.
When you have clicked on 'Sign Up' and typed in your new Username and Password and yet you cannot become a member of youtube, maybe it is because you are no a member of google. If you have a google account you may soon have an account on youtube. Hope this helps!
click the link below the login area it should say something to the effect of I Cant' Access My Account
You can search your YouTube account name in capital letters and then it will give a list of all the video's you have uploaded.