An observation: a lot of these---especially 'soft skills'---can't be properly learned earlier. They're a side effect of experience, and the 10 years doing the job is the only way to properly get them. The things I most often hear from potential employers when we ask what we should focus on more in teaching them are "soft skills" and "troubleshooting". My response is now to ask which of the long list of technical skil…
An aphorism I occasionally use (I can be tedious): "the only way to make a twenty-year old comfortable leading a meeting is to wait until they're a thirty-year old." Doesn't stop us from forcing the poor bastards to do public-speaking assignments or dropping them into "teams" of completely inexperienced people they've never met with no leaders in the name of ephemeral "soft-skills."
I currently work on a team of 10 engineers and 2 of them over 50, asked me what was GraphQL, when I did a public demo on GraphQL APIs around it. We are in a department that runs an e-commerce product with 30mil+ monthly visitors. How does a 25, 26, 27, year old automatically mean bad at public speaking...? Personally, my best manager has be 28 years old.