Do you take responsibility for your losses, or do you play blame game?
Even when I bet based on a friend's advice, and I lost. I still have to take responsibility for my own loss, not blame the friend who gave the advice. We cannot blame the casino, because they only provide the games, and it is we who decide to gamble.
Although some people, who I am sure are mostly non-gamblers, will blame the casino rather than the irresponsible gambler. We cannot blame anyone except ourselves. But everyone has a perspective on the situation they experience.
It’s clear that a gambler should blame only himself for losing money, but still, friends shouldn't give advice on what to bet on. Even if you realize that you're responsible for your losses, deep down you may still feel unpleasant about your friend's bad advice.