Originally Posted by
NoStressHere
If you travel very little in the first place, then it does not matter much. It takes lots of flights to get a free ticket - are you flying enough to get there?
As to the earning miles. Yes, the miles belong to the person that actually flies, and only once per flight.
If RDMs don't expire, it's always better to collect them than not since there's no cost to maintaining a FF number.