if you don't verify you're over 18:

• browsers will block 'adult' websites - this appears to affect all browsers (not just safari) and can't be circumvented via a VPN, it seems to be blocked at the webview level

• if you use safari extensions, you can't configure them any more

• a little red notification badge on the settings icon until you verify

• presumably a bunch of other bullshit too

oh, and the officially supported verification methods are:

• credit card (which i don't have; note that debit cards are not supported)

• driver's license (which i also don't have)

• national ID (whatever that means)

you can see the US defaultism in that list

"credit card or driver's license" might fly in the states but over here we have walkable cities and public transit and we don't really use credit cards all that much