I asked using the contact form on www.britrail.net and got this reply:
Dear Henning,
We understand your point however your Danish passport is sufficient ID to validate your Britrail pass.
Please don’t worry and have a great trip!
I think I’ll be bringing a printout of that email …
Credit:stackoverflow.com‘
4 Mar, 2024
4 Mar, 2024
5 Mar, 2024
4 Mar, 2024