Although the Australian version did have special shows where younger kids played with their grandparents/parents (The Generation Gap) The type of audience our version attracts probably wouldn't work with this.
Indeed...besides, the Oz TPiR seemed to use gimmicks like this every so often...around the same time, they also had Celebrity Week, where celebs would join the contestants onstage for their PGs.
Besides, the idea was mulled way back when the show was in the development stages...in that Dennis James/Mark Goodson pitchfilm making the trading circuit, Goodson mentions the possibility of a PG involving 2 young children bidding to try and win a prize for their mothers...thankfully, this element of child exploitation was scrapped before they made it to air.
ObGameShow: One of the celebs on the aforementioned Aussie TPiR's Celeb Week was 90s $otC host Glen Ridge.
Chuck Donegan (The Illustrious "Chuckie Baby")