I often have tight connections (either with other trains or with buses) so use whichever carriage is nearest the exit from the platform. e.g I know which door to use on 3/4/6/8 coach FCC services calling at platform 2 at Welwyn Garden City to be first off over the footbridge to get to platform 4 or to be off at Potters Bar to get the bus which leaves 1 minute after the train arrives.
I know at lot of others who do likewise, and will sit/stand by the door nearest the exit at their destination station regardless if the next carriage is completely empty.
some of the peak hour FCC trains leaving KX are full & standing in the rear 2 coaches but the front 1 or 2 coaches often have less than a dozen people in them. Similarly in the mornings the front unit is always fuller as they want to be off at KX nearest the exit.
I know at lot of others who do likewise, and will sit/stand by the door nearest the exit at their destination station regardless if the next carriage is completely empty.
some of the peak hour FCC trains leaving KX are full & standing in the rear 2 coaches but the front 1 or 2 coaches often have less than a dozen people in them. Similarly in the mornings the front unit is always fuller as they want to be off at KX nearest the exit.