Do you book reserved train seats and then not use them?

Posted by MissingLink101@reddit | AskUK | View on Reddit | 7 comments

Currently sat on a train carriage with about 30 reserved seats but only 6 people actually here. Do these seats belong to people who missed the train, are they in a different carriage closer to the gate or so people just book reserved tickets on the chance they might use them/the train?