Some colleges will not allow a sophomore to participate in the programs and events they run for juniors UCB- so while I I agree with you that the kid needs to think ahead, not every U is going to provide the kind of job hunting support that’s required. Getting professors in your department to support your applications for fellowships/special programs abroad, etc- they’ve just had less time to work with you, fewer interactions. Harder for a professor to pick up the phone and call a colleague at another U to say “this kid is amazing” if you’ve only had one class with him/her, they aren’t supervising you at work or in their lab, etc.
Can it be done? Yes. But most U’s are set up with a four year track and garnering faculty support for the kind of 'next steps" that require faculty intervention might be tough. A kid needs to hit the ground running freshman year. No sophomore slump. And a lot of initiative to get on the radar at career services!