It's not always as simple as that unfortunately.
I arrived in the UK recently and got a mobile sim card with a pay-as-you-go system.
When trying to view an adult content website using my mobile data connection, I arrived on that wonderful "blocked content" page.
To get it removed, I could use a credit card. Oh, but not any credit card. The one I have from my country of origin wasn't valid, not even the one from my previous country of residence. I needed a UK credit card, which I didn't have yet.
The only option was to go back in a store, with my passport, and say "Yes dear Sir/Madam I would like my internet with porn enabled please".
It was (almost) faster to setup a vpn.
Also, note that I say _adult content_, not even porn, as some website that do not contain specifically porn are blocked as well.
When trying to view an adult content website using my mobile data connection, I arrived on that wonderful "blocked content" page. To get it removed, I could use a credit card. Oh, but not any credit card. The one I have from my country of origin wasn't valid, not even the one from my previous country of residence. I needed a UK credit card, which I didn't have yet. The only option was to go back in a store, with my passport, and say "Yes dear Sir/Madam I would like my internet with porn enabled please". It was (almost) faster to setup a vpn.
Also, note that I say _adult content_, not even porn, as some website that do not contain specifically porn are blocked as well.