Maybe it's because it's related to making money to live, so women who play gambling are considered unsuitable, but many women out there also play gambling like men. Maybe if a man playing gambling can still be considered for marriage but not if it is a woman because of her nature, a woman has to look after her children, while a man has to provide for his family.
But in the modern era like today, where gambling sites are found on the internet, it opens up opportunities for women to try playing gambling, especially now that crypto is more popular and many gambling sites have applied crypto as a substitute for fiat.
Okay, it can also be related to the responsibility (not gambling) but being responsible for their children, also to his husband because it's the wife's role to prepare everything for his husband because his husband is busy working. In the modern era today, what is happening is the women are now the ones that work.
In a third world country, women usually go abroad to work for their family because the pay is not sufficient on their own country while the husband are left home to take care of their kids. Crypto makes online gambling more popular and easy to access. Husband or wife can now look for their kids while playing gambling at the same time. There must be an exemption for this.