Gambling is actually terrible and a dirty business in general, but hell, that's a video game, a singleplayer one, how harmless can it be? I'm all for Night City gambling, that's cyberpunk after all, what kinda decadence of humanity it is without gambling and stuff? I honestly hope to see A LOT of opportunities for that - legal (or semi-legal) casinos, bets, underground pit fits (preferably with an option to take part in one AND fix the fight for some eddies), maybe even blood sports (something like an announcement board somewhere in the net or combat zones with people to kill within a given time frame, with no reward for missing the deadline or other conditions), etc.
But the lack of any or all of that isn't going to make the game any worse, though. But that would be definitely welcome and, in my opinion, fitting in the setting of cyberpunk.