Managing personal Outlook.com account settings, security, and privacy
They are bluffing. It's a scam that has been going around for years now.
As long as you use a unique and long password your account should be secure. Using 2 factor authentication is even better.
The waiting period is for people who change there minds afterwards and there are many who do.
If your account isn't tied to anything then the waiting period isn't going to affect anything.
I'm not a big fan of Microsoft either, but they do have products I use, and my retirement portfolio has Microsoft stock in it.
By the way Android doesn't require a Microsoft account so not sure where you got that idea, but it prefers to have a Google account.