Why I don’t gamble with Bitcoin is because of the recent rise in the cause of transaction, I am more comfortable holding my Bitcoin and gamble with other coins must especially if the gambling site allows deposits of altcoins that are stable in price.
There's no altcoins that are stable, unless you are using stable coin itself, the popular stable coin is USDT and it's still high in transaction so you can use it in gambling as i think there are also few sites who are accepting usdt.