It depends, most forms of entertainment have a cost associated with it, and while in the case of some of them the cost is very low, some other forms of entertainment are a little more expensive, but there is nothing wrong with enjoying them as long as you do so with moderation, and gambling is a good example of this, as a responsible gambler can spend a moderate amount of money to get their thrill, while an irresponsible one can spend the majority of it and obtain absolutely nothing in return.
Some other hobbies are way more expensive than gambling but they don't often fall into addiction because they know how to handle it with care like collectors of antics and other similar hobbies. but when it comes to gambling, there are lots of people who fall into addiction because of the variety of choices whether you want to play small of money or a big amount of money. Also, there are lots of games that they play even in the elections, they will gamble on who's gonna win. that's why it's hard to resist once you are hooked up to it because gambling is all around the corner and the people that are addicted to it are all around the world as well.