Completely disagree.
I've had my Gmail for so long, I literally would not be able to dump it. Records, logins, accounts etc., all tied to my Gmail.
My phone, government accounts, lawyers, medical and tax are all tied to that account. It's more than just sending a new email address for friends to contact you with.
On the other hand, YouTube is....social media? You don't have to watch videos on line. I think I've used my YouTube account 5 times in my life, and I'm not a social pariah.
To be honest, it's probably a generational thing. No one I know really uses YouTube, and they all have their life tied to their Gmail account.
Just pay for an ad. Or is your product so bad that you can't afford it?