Yes I see a lot of people streaming online not only the children will be exposed to gambling but of course out of their curiosity they will would definitely try this out especially they are about to win real money, I think youtube and twitch are not that strict in regards with this kind of contents.
Online streaming activities are not age restricted even though there are notifications that only 18+ and above can watch this, if you are a father or have a younger brother then you should be suspicious and check the activity in the smartphone history, this is a step to prevent children from being involved gambling.