You know what they say: Three times is a trend.

Well, first Canada elected Justin Trudeau prime minister at age 43, and he became something of a political marquee idol thanks to his “because it’s 2015” explanation of why his cabinet was half women. Then France elected Emmanuel Macron president at 39 after he upended the establishment political parties with his En Marche! movement (then he and Mr. Trudeau began a bromance of sorts during the G7 meeting in Sicily). And now comes Sebastian Kurz: the 31-year-old about-to-be chancellor of Austria, and the youngest leader of a European Union state.

“Austria’s answer to Macron and Trudeau?” CNN asked earlier this week.

In terms of policy, no. Mr. Kurz swept to power on an anti-immigration platform. Unlike Mr. Macron, he worked within an established party — the ÖVP, or People’s Party — to reshape it, as opposed to starting his own. Unlike Mr. Trudeau, he had no legacy to live up to or exploit.

But in terms of presentation? Absolutely.

There has been a lot of talk in recent elections about dissatisfaction with politics as usual, and one constant among all three men is that they crystallized the desire for change by connecting it to the look of generational change.

They don’t dress in established conventions. They don’t talk the same. And in the visual culture of a social media world, they understand how, increasingly, that can convince voters that they are not the same.