Fourteen hour trips at the legacy airlines come with the dreaded “9 on, 21 off” schedules. Super senior FO’s fly them. “Dozing for dollars” as half your time is spent on break. No one is forced to fly them but guys more than willingly fly them. 777 CA? Nah, I prefer being senior FO and flying the 9 on/21 off trips.”
And even the ‘short’ 7-9 hr flights are pretty easy. One flight a day is a nice gig.