Playing gambling with the crowd like the picture in the OP in my opinion will only make our gambling concentration disappear. If it were like that, I might never go to a casino to get away from such a crowd.
And I will decide to play online, considering that online gambling is classified as a lot.
But you know, I think the same way, the concentration of most gamblers might not be there but what is good about going in a casino like that is this crowd brings too much fun and you can get to know more gamblers. The essence of gambling while having fun with friends is in there.