In the early-2000s "copyfight", many people theorized that the apparent support of young people for the "low-protectionist" side, or their enthusiasm for P2P file-sharing, or remixing, or fan fiction, was presaging a radical shift in copyright law once those young people grew up.
A lot of them have grown up now and that shift doesn't seem to have happened on the legal side. Maybe there are some shifts in norms (e.g. many authors and publishers used to loudly maintain that fan fiction was not a fair use, but most seem to have decided that it would be a bad idea to sue over it, and it's become more normalized overall), but not much in legislation!
So I'm not sure this outcome is in any way guaranteed.
(Larry Lessig also said that his foray into copyright activism had convinced him that campaign finance was an obstacle to having legislation reflect public opinion. Not every issue is a "campaign issue", but some issues that legislators don't directly campaign on are very important to donors. Lessig concluded that copyright was one of those.)
Depends on how you define "young people", the average age of the US congress is 58 and Senate at 64. If the people I know in that age bracket are representative, they certainly don't exist in the "peer domain" that even has a conception of what we're discussing, even less so in the context of digital/software shit.
We're talking from 1958-1964, in particular (predominately) the "elite" class of people born in that period who became successful career politicians, who are arguably (though not much of one when considering the evolution of IP law...) beholden to lobbyists which is just a convoluted way to say corporate interests or arm twisting from their peers...
So no, young people aren't in control, and the ones that are will ostensibly be borne to power from their favorable starting position which means they're probably going to follow the trajectory and preserve the status quo.
In the U.S. millenials just overtook baby boomers to be the majority of the voting population 2 years ago, so we're still pretty early on those people (myself included) being able to dramatically influence politics. It'll take even longer for them to become elected officials themselves.
A lot of them have grown up now and that shift doesn't seem to have happened on the legal side. Maybe there are some shifts in norms (e.g. many authors and publishers used to loudly maintain that fan fiction was not a fair use, but most seem to have decided that it would be a bad idea to sue over it, and it's become more normalized overall), but not much in legislation!
So I'm not sure this outcome is in any way guaranteed.
(Larry Lessig also said that his foray into copyright activism had convinced him that campaign finance was an obstacle to having legislation reflect public opinion. Not every issue is a "campaign issue", but some issues that legislators don't directly campaign on are very important to donors. Lessig concluded that copyright was one of those.)