Personally, it's very easy to gamble responsibly. I've been gambling for close to a decade now, and I've learned to gamble responsibly, but if I'm to answer that question generally and not personally, then no, it's not easy.
It's not easy because the casinos and betting companies plant the ideas in the heads of customers and potential customers that they can get rich from playing. With an idea like that, people won't think about how much they will lose as long as they get out of poverty. Add that to the stories they hear of people who won hundreds of thousands of dollars in betting, and it changed their lives. Stories like that motivate them to think that one day it will be them
Then there is the chasing of losses. You want to get your money back, and there is a voice always at the back of your head telling you that the next bet might be the one you'll win big and recoup all your losses. So, we can see its very difficult to gamble responsibly, but it's very possible.