My Android phone prevents me from recording phone calls at the request of my carrier, even though it's totally legal for me to do so in my jurisdiction.
I'm not loving where this is all going.
Luckily there are alternatives in the form of code displays and NFC chips. However, next year I won't be able to watch porn unless I verify my age using a smartphone, no alternatives are planned. Or rather, I have the "free choice" to choose between a privacy preserving ZKP solution operating in the kingdom of Google or uploading my face to a porn site.
Dark times.
Of course you can. The AS numbers of major hosting providers are well known and it is already common practice to ban associated IP addresses for stuff that should only be done by legitimate users.
That means Netflix et al can (and do) ban everything that even remotely smells like a datacenter IP range and not a residential one, because that is a common method of evading regional bans or undermine pricing structure.
And on top of that... if the focus of your website is humans, you might want to cut off all datacenter originating traffic as well. Save yourself the hassle of dealing with AI scrapers.