[Kranodor]

Oh, I don't have any problems with that in singular play.
Click. Click. No problem.

Problem is multiplayer on LAN (local area network), so ingame with "multiple machines" and "simulanteous turns".
On LAN (parties, sessions, whatever you'd like to call'em) turn based games aren't very popular because in most of them, most of the players can't do anything but watch most of the time. And you don't transport your PC to some other guy's home just to watch your screen. Only exception: Simultaneous turns. And those are (except for Deadlock-series, maybe) only executed correctly in 4x-games.

Problem: If you e.g. play Reach for the stars or Master of Orion 2 or 3, you have instant proceeding of game turns. Means: When all players pressed "end turn", the turn is automatically proceeded and the next turn begins within the next two seconds after the last player pressed "end turn".
If you play SE4 (gold), which is, in matters of depth, possibilities and realization superior to the three other games mentioned, you have all players end their turn and then the host has to proceed and all players have to press "play turn" before the next turn actually begins.

During later play, when a turn takes several minutes to play, this isn't something to worry about. It is still an annoying gesture, but not anymore as time consuming compared to the actual turn. But during the beginning, with short turns, it plays not very much different from "traditional" turn based, with one player after the other.

That's why I'd wish for an auto-proceed option. It's not the problem that I have to end my turn, and that I may have to confirm turn-ending. The problem is that endless time in between the turns when playing on multiple machines simultaneously in a local area network.
Because, in LAN, when all players have ended their turns, there is nothing more left to do but "proceed" and "begin next turn on all machines".