The truth is that a player has a lot of things at stake just like you have rightly mentioned both money and emotions are two strong factors that always control the way we bet on a casino and in other to be able to avoid sliding into indication on the long run trying to chase a particular direction unchecked.

You are right in the area of the casino not forcing players to place bets and the decision is solely left for the players to take,  but in the long run it all ball down to the fact that the casino already has a system in place to always put the interest of the casino first against that of the player and this position have put casino user in a corner were ther either rely on luck to make a winning and because of that player have to double the stakes in other to record some winning that could compensate their efforts.