Nowadays, seat swapping is resisted. However, I was reminded of an amusing scene in (I think) 2000.
I was on my most regular route LHR/JNB in Prem Econ. On the return, which was a daylight, I noticed a family where the two parents had booked themselves the last row of Upper and had the two children (aged about 10 and 12, I'd guess) in the front row of P.E. on the same side. Hence lower price for small bodies that did not need Upper. The CC were happy to allow them to pop through the curtain to talk to their parents and the children were
very well behaved.
In the early part of the flight, the children played nicely on their seat back consoles. After lunch, I had a snooze and then noticed that the children had effected a
Putsch! They were now playing the games in the BIG seats and parents were curled up in P.E.
