Well, honestly, I don't think of preparing a cash out if I'm still playing.
I suggest one has to learn to be specific with their game plan, cash out when necessary and don't wait for another win before you cash out.
The thing is, we want to be profitable, and it's not wise to not think of enjoying your profit because gambling without direction will only left you unprofitable in the end, go with your plan, don't be greedy, just master yourself in doing the right thing and you'll eventually be consistent in the long run.
You cant say that people should really have that kind of plan because there are people or individuals doesnt really care if they do lost up the entire amount as long they do able to enjoy out the game.
It might sound dumb because people do gamble for the sake of profits but there are people who do gamble for fun.We cant generalize them though since majority is on the profit-aiming kind of mindset.
Just like on what you had suggested where there should be some a point on where you do set out some limitations and since you do saw that you are already in gains or profits then
its always be a worthy thing to be done to completely stop and call it a day.There are some people cant really just avoid on expecting on advance on a certain game
which they do think that it is already a guaranteed win to think that as long the timer doesnt stop then it isnt over yet.