This development is so strong we can see that people will play it. Even all classes of society can easily access this gambling game.
Almost every app or sites especially the illegal one, you could always see pop-up advertisement about online gambling, by those simple ad there's no wonder online gambling are starting to increase espcially nowadays. Plus the convenience it gives and fun wherever you are as long as you are connected with the internet you could be big time winner or loser.
''I saw a child using a phone to gamble. Will this be a harmful effect worth reporting?''
If every online gambling would mandatory have age limit like 18+ where they would be needing ID plus the face check if it's legit maybe it would decrease the numbers of minors gambling. There's a lot of negative effects of gambling to kids not only to money but to their behavior and mindset as well, cause most kids have the feeling of competitive and would eventually want to recover their losses and led to addiction.