Apple To Force Users To 2FA On iOS 11, macOS High Sierra (onthewire.io)
Trailrunner7 quotes a report from On the Wire: With the upcoming releases of iOS 11 and macOS High Sierra later this year, Apple is planning to force many users to adopt two-factor authentication for their accounts. The company this week sent an email to customers who have the existing two-step verification enabled for their Apple IDs, informing them that once they install the public betas of the new operating systems they will be migrated to two-factor authentication automatically. Two-step verification is an older method of account security that Apple rolled out before full two-factor authentication was available. Apple is phasing that out and will be upgrading people with eligible devices automatically. "Once updated, you'll get the same extra layer of security you enjoy with two-step verification today, but with an even better user experience. Verification codes will be displayed on your trusted devices automatically whenever you sign in, and you will no longer need to keep a printed recovery key to make sure you can reset a forgotten password," the email from Apple says.
and the rest of my relatives asking me to fix it.
You aren't required to have an Apple account, but you'll probably want to. Having an Apple ID allows you to do a cloud backup of any iOS devices you might get. It allows you to access the app stores for both MacOS and iOS. It lets you use "Find my Mac" to track or remote-wipe your computer if you lose it, and "Back to my Mac", which gives you file sharing and remote screen access to your other Macs without needing a VPN, if you have multiple of them, even if they're behind a firewall. If you want to buy anything from iTunes, you'll need an Apple ID. It's even the sign-on if you want to order anything directly from Apple's website. If you want to anything that connects to Apple, you'll want an Apple ID.
That doesn't mean you need to get one. You don't need to link it to your local sign-on. You don't even need to use Apple's domain (e.g. you can have the Apple ID use a Gmail address or whatever) unless you want to get a free email account with it.
It's ultimately not that onerous. They don't try to railroad you into to the degree that Microsoft does.
You're an AC that works at Teleperformance or some other call center, and you think you know what you're talking about. No Apple ID is required to create an account on a Mac or to download updates.
Update (iOS and MacOS) are available here, no App Store required.
As he stated, you do need an Apple ID for the App Store and iCloud features.