For me it's (just) a way to log in into YouTube, I have a coupple of lists there which are nice, and I also use it for the Play Store on my phone where I bought

For me it's (just) a way to log in into YouTube, I have a coupple of lists there which are nice, and I also use it for the Play Store on my phone where I bought 2 apps which I use, so I guess those would be gone too. Otherwise I don't think I use a google account for anything else.