In practice La Quiniela works more like a lottery than betting, though. No immediacy, no lights and sounds, no adrenalin rush. I don't think there's much risk of people falling into severe addiction by playing that.
I've played a couple of times solo and in group but never sticked to me.
No related to the point, but what it did stick to me for one season was La Liga Fantástica from Marca ( a fantasy league on paper) when I was a child, because it had the data component, you had a budget to pick players etc, This was before we had internet broadly, if I remember correctly the paper would publish huge lists with the teams ranking or the players stats. But what I do remember was some of my best players like Zalazar :D