Legalizing online gambling doubled Dutch State's gambling income to €1B

This seems to imply that the income of gambling companies also has doubled. It probably also means that the number of people with problem gambling has increased.

Many experts warned the government that legalizing online gambling was the wrong way to go. With the legalization also came a flood of advertisements on TV and Internet, targetting young adults. Attempts to reduce the impact of those advertisements have proven difficult. Influencers have profitted from this.