The episode "Pass the Parcel" ostensibly teaches kids that they can't win every time, and they need to learn how to lose gracefully. Lucky's Dad laments that giving a kid a prize at every stage leads to a nation of "squibs." He puts one large prize in the middle so kids can play the "proper" way from the 80s.
While the show makes it seem like this is leading to emotional growth, it is straight up grooming kids to become gamblers. They learn to cope with a string of small losses and grind through round after round, at party after party every weekend with the promise that one day they'll be the one to get the big score.
The motives here are clear. Disney licensed Bluey and has deepened its ties to the show's production. Disney owns ESPN, which is increasingly dependent on sports gambling--both directly on its own platforms and through advertisers and indirectly for viewership. While Bluey is usually wholesome, this episode is just wiring kids to become gamblers. All of this is barely hidden on rewatch. For biscuits' sake, they emphasize saying "Lucky's Dad" instead of using the character's name.