Having a steady and regular income is very important as a gambler because it would enable you to scrap out money you should use for gambling, feeding, taking care of yourself and family and other miscellaneous.
A gambler who has a steady and regular income can have the possibility of winning because his gambling habit can not affect his personal obligations as a man even if he's an addict because being addicted to gambling doesn't actually implies that one will eventually stake all his money on bets but rather someone who plays gambling frequently. By having a steady income, he can take care of other life responsibilities without being affected by his gambling activities and moreover, someone who have a stable income can be aiming to win higher amount in his bets and might be lucky of winning one day and use the money to establish an investment.
Your thoughts on this
Though not in real sense comparable, but in terms of the importance of having a regular income, gambling is like investing in crypto, and on this, I would point out that there is nothing as frustrating as investing in crypto while not having a good source of income as a backup, you discover that at the slightest issue that arises, you end up selling your investment even at a loss, just to have the funds to sort that issue out, I've once in my life been there, so I know what I am talking about .