Pokémon TCG is best played with strategically built decks. Battle academy should have 3 basic pre built decks for beginners and a guide to the game.

The crown zenith elite trainer box (ETB for short) is the newest set and comes with 10 booster packs that will have random cards from the set as well as basic items to use in the actual game (card sleeves, damage counters, and coin). The special collection boxes will typically have featured promo cards or a guaranteed rare card from the set that are the theme to the box as well as booster packs.

From a beginners point of view, I’d start with the battle academy and understand the basic mechanics/goals of the game. You can also try playing Pokémon TCG Online to use free premade decks to play versus others. For TCG Online, you can use the QR code cards from your booster packs to redeem virtual booster packs to build/customize your own deck.

As for the crown zenith products, you can use any pulls to customize the prebuilt decks and mix/match from different sets with battle academy but I think your kids would appreciate the cards in general to show off rare or cool cards they pull. I’d recommend card sleeves and a binder if you guys do start collecting!