As someone who is active on social media it would be very difficult for you to not see how people are making money out of gambling. Also if you're a sports fan all you see while watching a game are gambling ads. These things make people tend to want to gamble because it is presented una away to make you earn money all the time. It is till you start that you realize that it's not always like that. A lot of caution has to be applied.
When somebody has the mindset that gambling can be a second source of income for I feel they have lost the plot before they even start.
I am a gambler but I don't think I'd teach someone to become a gambler. If they come to me and ask questions on how to use a particular casino or how to find an account or how to play a particular game I might explain, but to teach you everything about gambling from the beginning is not something i can do.
First, the person has to have the right understanding that gambling won't become a second source of income. You can earn money from it from time to time, but it's not a source of income.