It is spreading as a cancer. This month the central bank published a report saying that in August 20% of the Bolsa Família, the largest money transfer program for very poor Brazilians, was spent on these bets.
Out of the 20 million people that receive it, 5 million made bets during that month. This is 2 billion reais (about $450M) spent in a single month by the poorest Brazilians.
It's a cancer. Everywhere you go there are ads. The influencers, the biggest athletes and musicians are marketing it.
Although I tend to be liberal, this needs to be heavily regulated.