First off this isn't about the rights and wrongs of traveling abroad currently.
For those that do travel abroad (or indeed those that choose to come to England for whatever reason) there is a requirement to complete a Public Health Passenger Inforamation Form. This, as I understand it, is so if you are found to have Covid-19, anyone who was traveling with you (I.e. on a plane/train carriage etc) can be located and asked to isolate for 14 days.
I've just looked at the form and it is only accessible online, and you can only complete it less than 48 hours before arrival in the UK. It can be asked for at border control and you should be ready to show it on your phone. There appears no way to print off a blank form to complete.
How does someone manage if they don't have data roaming/internet access whilst abroad?
What happens if you are unable to access it digitally and so don't do it?
Just wondered if anyone has come across this yet?