People who can't be bothered to find their seat they reserved and just sit in any unreserved seat that they can find - there's a lot of these people, believe it or not.
Although a moment ago you were saying these trains were very full and therefore standing should be banned, now you are saying that there are lots of seats that are reserved but not being used.
So essentially what you are saying for you want to leave people stranded at the platform whilst by your own admission, there are unused seat reservations. That's just barmy.
Have you ever heard of a Taxi? Perhaps it might be a better mode of transport for you.
There wouldn’t be unused reservations if they were switchable at short notice, and why would people be on the platform if they know they aren’t getting on the train.
Anyway - I think we may as well agree to disagree - our positions are clear and we aren’t going to convince each other!