I guess it's almost the same comparing the two. In online gambling, you are just not physically there. The possibilities of risk are less compared when you're in a casino. No people would be staring at you, but there are also instances of hacking when you've exposed yourself with your money. I would prefer online still.
If i am to talk about safety, i would actually choose to play in real world casino because i got to control the chips and the physical counter to exchange for cash and chips are always there. So it wont be a day that i have tons of chips and the next day i woke up to find that the casino is no longer there and i end up with useless chips. This is true for online casino whereby a lot of these casino can disappear overnight and you have lost everything.
yes the real world casino will never get dissapeared untraceable, they will always there no matter what as most real casino always registered under real name owner so you can track them in case they are run out or terminated.
while online casino always running anonymously, especially Bitcoin gambling sites, you will always feel insecure.
The real casinos are not a scam, and we will get our winnings immediately without any issues. But in online gambling, some sites will cheat us and sometimes it will take too long to withdraw our winning. The real casino it is too expensive because we must play some coins over there and if we lose that money, the casinos will give some extra coins to play. This type of facilities is not there in online gambling.But still, The online gambling is good, because we can play whenever we want. And if we don't have money we have a chance to play free games.