Cynthia. How many actual trips will you be making on the French rail system? If only one or 2 then the 60Euro per person isn’t worth it. As others have said, there are senior fares available. Prior someone mentioned if you enter the ages of all passengers you are purchasing tickets for - and they are 60 or over - you automatically get the reduced senior fare.
I have the app OUI.com. Very handy. It also shows a chart with strike days and will show which trains are running on those days. The app easily lets you exchange tickets if your train is not running because of strike conditions.
Hope this helps.