Nothing changes your mindset if you have not made up your mind to change and when it comes to gambling it is not something that can easily be stopped especially if one is addicted to it so having the responsibility as a father can affect your gambling life because before you think of using a particular amount of money to gamble you have already kept something that can sustain your family that's in the case of a responsible gambler but the other way round may not even consider the family rather he will even take whatever they have at home to gamble not minding if what the family will eat.
It is only an irresponsible gambler and an irresponsible parent that will prioritise gambling over family. Parenthood indeed changes and influences a person's lifestyle. Parenthood comes with its own challenges, a responsible parent will spend most of his time fighting these challenges to ensure they give their children a good life. Once children are now involved, your perspective about life challenges, you will have little or no time for gambling.
Even with the little points some addict will still not care but gamble with the mindset of doubling the funds when gambling is unpredictable, in my locality having kids and wife doesn't stop a man from gambling except the person lacks money, no one can think of paying bills and wanting to gamble with the money, once you've tried to gamble with the money and still didn't get the profit then you should quit or else the habit might turn to an addiction, although it's very rare seeing a man with family responsibility gamble often.
Gambling addicts will always show acts of irresponsibility, I am not surprised. So many responsibilities makes most parents lose interest in some lifestyles or activities they were once obsessed with before becoming parents. Except for few rich privileged ones who can still do whatever they wish to do without getting to bother about the children's bills.
It's fine to gamble every now and then, even when you're a parent, as long as you're able to control your finances and your time. Don't neglect other responsibilities just for your own entertainment.
Yea, being a parent does not mean that you should deny yourself some entertainment and self satisfaction. As long as your gambling habit does not affect your responsibility to your children and family as a whole, you are free to gamble.