1: why do you gamble on weekends?
Well, weekend is weekend and there is always a different vibe that comes with it compared to weekdays, on weekdays, people are mostly busy with work and their businesses, a person who works remotely might have friends who don't work remotely, so, in other for him to connect with those friends, he or she has to wait till weekend when he's or her friends will be chances so they can connect.
Personally, if it's about offline gambling, I prefer to gamble on weekend because..
1. There are always more game opportunities to play during the weekend, most especially, if the focus is on sports betting.
2. I get to meet more people in the casino during the weekend, both people and I know and new faces to connect with, gambling on weekends gives more good vibes than gambling on weekdays, for the more crowded a casino is, the more the games appear to be fun to play.
2: why not choose other days to gamble instead of following that traditions?
I think I've already answered this question together with the first question in my reply above, but to add, I think gambling on weekends is not about tradition, it's about when people are free from work, when they take breaks from their business to enjoy themselves, weekdays are for work while weekends are for rest and having fun, this is the same reason why most people don't go clubbing during the weekdays, but only do so during weekends, because on like clubbing in weekdays, you arent in a hurry to go home to prepare for work the next day,.