Right, I mean at the end of the day what both economists and policymakers have always been trying to capture with the term “unskilled” labor, is labor that doesn’t require a high degree of specialized training. Most of the people talking about how picking fruit involves various skills are basically missing the point. You can take someone who is physically fit for the job, but who has a 7th grade education and no prior work experience, and start getting valuable labor out of them the very first day picking fruit. They will not be as good as someone with 5 years experience, but they will get better every day if they are motivated.
If you took a similar person and set them at a Master Electrician or Plumber or Welder’s task, not only could they not do even a small bit of that person’s job and produce any value at all, they would actually be likely putting themselves and other people in serious risk of injury. That’s why the traditional system for training those people involves a period of time where you do the lesser skilled work sometimes ancillary to those jobs, while taking classes and learning from a Master in an apprenticeship.
Recognizing that this is a significant difference from the “on ramping” process for a fruit picker is not saying that a fruit picker’s job easy, doesn’t produce value, or has nothing more to it than “see fruit, pick fruit.” What is important is there is a barrier to entry to skilled work because you cannot just hire someone off the street and start onramping them into a skilled position, they have to go through a process. Lots of line factory jobs, you can just like a fruit picker, be doing productive work within a day or so. There’s absolutely line jobs at factories that you get better at with time.