Why do some players never accept a draw offer? Some of the people I play against will never accept a draw offer, even in positions that are a theoretical draw.

I know it's a draw. They know it's a draw. But they want to play until:


Draw by stalemate
Draw by insufficient material
Draw by threefold repitition
Draw by the 50 move rule


In a recent casual game (i.e. no arbiter, no clocks), my opponent forced a stupidly long draw (49 moves with no captures or pawn moves, then 1 pawn move to recent the count. Repeat until insane).

My question is, why do some players never accept a draw offer, even in dead drawn positions?
I'm going to assume here you're playing against people you don't know very well in a park somewhere.

While you both know it's a draw, he's assuming that you don't know how to play it out or that you'll lose your patience and make a blunder. After you both have played against each other some time, you'll both know what you can and can't win against each other and he will offer draws out of his own initiative. Unless, of course, your opponent is very stubborn then you just have to put up with it.