Flanker Robinson will captain the Junior Wallabies at the tournament beginning later this month in Georgia.
The son of former Wallabies flanker and current World Rugby chair Brett, the side also includes NRL great Brad Fittler's son Zach, ex-Wallabies captain Nick Farr-Jones' nephew Tom and former Wallabies flanker Michael Brial's son Toby.
But it's the unprecedented inclusion of French-based props Kingbenjamin Swerling-Finaipepe and Lehopa Leota, and the availability of Queensland Reds ace Treyvon Pritchard, that has tongues wagging.
It's the first time Rugby Australia has selected overseas-based players, the strategy coming with more than 30 young talents currently in the French system.
Leota, like Swerling-Finaipepe, spent time at Ballymore before his move to Racing 92, where his 130kg frame has rocketed him into the club's Top 14 side this year.
Swerling-Finaipepe, at 19 a year younger than Leota, moved to Castres after playing club rugby for University of Queensland last year.
"I was never too sure; I'd heard rumours but never knew for certain," Robinson told AAP about the foreign selections.
"We're excited to have them here and see if they've got some different perspectives on things that can improve us.
"And it's not like they're just coming in from nowhere; a bunch of us already know them. So we reconnect and go from there."
The French selections are Rugby Australia's biggest reaction yet to the drip of emerging talent - particularly front-rowers - to Europe where they can naturalise and eventually change their allegiance.
"Both boys were a part of the Queensland Reds pathway programs and (Reds forwards coach) Zane Hilton and I enjoyed a catch up with Lehopa when he was last home at the end of last year," former Wallaby Paul Carozza, the Reds' head of talent management, said.
"We are keen to stay in touch with the Queensland pathway boys and we will with Kingbenjamin when the time arises.
"I hope he comes back to the Reds, just so we can have his name on the big screen at Suncorp Stadium."
Australia finished third at the U20 Rugby Championship earlier this year, their lively backline thwarted by the might of hosts South Africa.
"The footy we like to play is high tempo, fast-paced, attacking," Robinson said.
"But it's the other areas we need to nail; the defence and set-piece, to have a good crack.
"We're going there to win it and a few big ins - the France boys will help our scrum and Treyvon and Wallace (Charlie) - will make a difference."
Pritchard was lively in his cameos for the Reds on the wing and at fullback this year while Charlie turned heads on the rugby sevens world tour this season.
"He's a freak; a tough guy to tackle and having him there, everyone's confidence and belief just lifts," Robinson said of Pritchard.
Australia will play group games against Spain, Fiji and U20 Six Nations winners France, with only the top side progressing to the semi-finals.
AUSTRALIA U20: Ewald Kruger, Eli Langi, Chayse Geros, Edwin Langi, Matthew Sauao, Isaac Fonua, Toby Brial, Luca Cleverley, Marshall Le Maitre, TJ Talaileva, Angus Grover, Sam Blank, Jonty Fowler, Zach Fittler, Leo Jaques, Charlie Bird, Tom Farr-Jones, Jacob Job, Charles Hollyman, John Grenfell, Kenneth Harris, William Ross, Tom Robinson (c), Finn Mackay, Taione Taka, Treyvon Pritchard, Cooper Watters, Wallace Charlie, Kingbenjamin Swerling-Finaipepe, Lehopoame Leota.
