maybe in your country gambling is legal, in my country gambling is illegal, and I have never seen any advertisements about gambling on my local TV station, but unfortunately most children now prefer to watch YouTube, on YouTube I sometimes see advertisements for gambling , but I have set it if my child is holding my cellphone so that it doesn't display gambling advertisements
Gambling is not legal in my country so gambling ads are not available on all TV channels, but 1xbet ads are shown on sports channels in my country during cricket football matches. Government takes a very strong stand against gambling. Many people in my country are arrested by law enforcement agencies every year for their involvement in gambling. But because the people who run the sports channels are high-ranking people of the government, no one takes any action against them even if they advertise gambling websites.
But yes they only show these ads during the game and the rest of the time no gambling site ads are shown on any TV channel. TV channels are more interested in advertising gambling websites because they get paid many times more for advertising gambling websites than other advertisements.