If you’re confused about the difference between “age verification,” “age estimation,” “age assurance,” and “age gate” — you’re not alone. Let’s help you make sense of it all. https://www.eff.org/deeplinks/2025/10/age-verification-estimation-assurance-oh-my-guide-terminology
Age Verification, Estimation, Assurance, Oh My! A Guide to the Terminology

Age verification, age assurance, age estimation, age gating—they get thrown around interchangeably, but they technically mean different things. And those differences matter a lot when we're talking about your rights, your privacy, your data, and who gets to access information online. So let's clear up the confusion. Here's your guide to the terminology that's shaping these laws, and why you should care about the distinctions.

Electronic Frontier Foundation

@eff

It don't matter to me.
I'll refuse to enter ***any*** site that demands age ferification in any form.

I'm too old for that sh*t.

@eff my work email received a note a few days ago, “we could not automatically determine if you are Ana duly, so we have restricted your google search and YouTube activity to not show anything adult oriented, and alerted your advertising profile as well.”

I don’t use google search, and only look at corporate mandated things on YouTube at work, so that is an absolute win.

Also, screw automated age guessing or verification.