where the hell are some you ending up? It cant be the youtube vid that mark pointed you at.,
Ah right, just done an experiment, if you are not logged into google, dont have a google account or dont have a youtube account, you need to age verify,
Got that age verification thing on Youtube a few months ago even when logged in to my Google account. Lots of videos wouldn't play at all, nothing dodgy.
Googled it of course and it seems they are rolling it out to everyone in batches. Best as I can tell, once your account is flagged there's no getting around it, they want your id if you want to see anything above a U rating on YouTube.
Gave up trying to find a way round it in the end, gave them my driving licence stuff, now it's fine. Was jolly annoying though.