Yeah, we treat Bitcoin as precious and that's why we don't want to spend that much if we've got some alternative coins to be spent. But if we have no option, we won't be gambling all that we've got but we'll still make sure that we have remaining in our stash that's good for long term holding. And those that have a lot to spare with, they have no issues spending their Bitcoins with bets that they prefer and as long as they are going to enjoy it, it won't be a big problem to them because they know what exactly they're doing with it.
There are several types of gamblers where some gamble with money according to their ability to lose, some are ready to gamble with everything they have, some gamble with loans, and some gamblers who can even kill someone to manage money for gambling. So whether you can keep your Bitcoins safe despite your gambling habit will depend on which category of gambler you are. But I will say one thing that if someone sells his valuable asset Bitcoin and gambles, it will be the biggest mistake for him. Because if he spends those Bitcoins for some important reason, then even if he spends those Bitcoins, his important work will be successful. But if he sells Bitcoins for gambling, then he will completely lose those Bitcoins without fulfilling any of his needs.
I think most of us did that in the past and still some doing it now, sell some of their bitcoins to gamble. As long as it's just a tolerable amount and they are fine doing that, it won't be a big problem to them and we shouldn't be worrying about them when they've done it. Most casinos now are accepting bitcoin and gambling is one of its usage as a currency so there is no way to stop them. For some, it might be a mistake but those that have done it, we can't remove the happiness in them if they did it on a purpose.