This whole thing is just stupid. On one hand if someone has two accounts set up they can't read their mail while signed in to the separate youtube account. On the flip side of that if you use one account you can't get to your subscription updates or recommendations without logging into your email.
I'm in the latter situation. For years I've had youtube set to just stay logged in, so I wouldn't have to take the time to log in whenever I swung by to kill a few minutes. Let's face it, without the personalization youtube just isn't worth visiting. This all worked great up until last week when I got a new laptop. Now if I log out of my email, which I do religiously when I'm done with whatever I was doing, then my youtube is also logging out. I'm never going to leave my google account signed in all day. The things that are in my email account are personal and not to be read by anyone who is able to simply type gmail.com, but I don't care if they get into youtube and see who I'm subscribed to. I'm also not willing to type out my credentials every single time I want to see the newest cat videos youtube is recommending to me.
If this isn't change the result will be that I stop visiting youtube unless someone sends me a link to something they want me to see. The login has become far more of a hassle than it is worth.