Absolutely mate using our last money to gamble is a very bad idea cause we all know that some.of us here already experienced this kind of scenario that we are lovely to play using our last money. And yes that's a bad idea cause not all the time when we put our bet we will win so there's a possibility that we will loss in our last bet and if that's happen then we will regret in the in it. Cause if we don't let our greed take over us then we still have enough money. But in the end there's a possibility that that we cant fight our greed.
I suspect that what is meant by last money is the last money that the gambler has in their casino account, because if what is meant by last money is really the last money they have in their life of course that is a very stupid act, although there are stories of people who ended up can double their money but I'm sure there are many more gamblers who experience the opposite but they don't tell about the bad things because they are embarrassed and so on.
I often use the remaining money in my casino account for just one bet because I don't want to continue playing and it's not a big value, it's just leftovers from the game session at that time, I'm sure many gamblers do this but for different reasons, and whatever the reason. It doesn't matter as long as the money is the last balance in the casino, not the last money we have.