>I believe the main reason for this is to prevent people from getting cheaper tickets for short trips by making two separate reservations. That's a thing but i

>I believe the main reason for this is to prevent people from getting cheaper tickets for short trips by making two separate reservations. That's a thing but it's probably not the reason for this. The main reason for this is that you have to do something weird to end up in this situation, if you miss your first flight you'd normally contact your airline. If you miss your first flight and say nothing to the airline, then they might rather reasonably assume that you aren't gonna show up for the return leg.