I have searched around and can't seem to find an answer for both of my concerns.
1. As a USA passport holder, will I encounter any issues with a ticket purchased from the TGV-europe website with a selected "ticket collection country" other than the USA? I know if I select USA I get bumped to the raileurope website. But if I buy the ticket after selecting Great Britain will I have any problems using the ticket once in France?
2. One of the tickets I will be buying will be for a 21 year old, can I buy a fare for a 26-59 year old and use it with a person younger than that age range?
I plan on buying all of these train tickets from the US before leaving for Europe. My only concern is I buy these tickets now, then when I get to France I am told I can't use them for one of the reasons I have written above.
Thanks in advance for the advice!