I personally have never done this, because the balance in the casino will only continue to encourage us to bet, the casino is not a safe place to store it, especially over a long period of time. In my opinion, generally gamblers who have a balance in a casino aim to play only once, there are 2 possibilities to spend or withdraw if they make a profit. As long as I play at the casino, I will play whatever balance is in the casino until it runs out or until I reach the withdrawal target. A few days ago, after I got my winnings, I withdrew it to my wallet, and after a few hours I deposited the money again. But in smaller quantities. In essence, this activity is often carried out by many gamblers where they make withdrawals but their ambition to play is still not fulfilled which results in the money they have withdrawn being deposited back into the casino.
You are right, but on a general term, it is still better to deposit the money back into the casino when ever one is ready to play than leave the money in the casino, most especially if the money in question is tangible.
Except the gambler is someone who gambles very frequently and stepping out out of the casino is just taking a break for them, which means he or she will return back in few hours to continue gambling, then I will say that there is no need withdrawing the money, and then coming back a few hours later to deposit same money and continue gambling .
But for the occasional gamblers, it is much advisable to withdraw your money, for he or she knows not when he or she will come back again to gamble. I personally don't leave money on casinos because I am an occasional gambler, I can only leave the money on the casino if it's between $1 to $9, anything above that , I will withdraw it to my wallet.