I'd push back on that a little bit. I grew up on a farm that's still operating today, and it truly is difficult to find people to work those jobs. The farm pays just as well as any other job in my rural hometown, so from my experience, it seems to be more of an issue with the work itself. The hours are longer, and work is more sporadic/seasonal. When harvest rolls around, farmers need to get the crop out of the ground ASAP. That means 10-14 hour days for 4 weeks straight, otherwise, you'll lose product. It can be physically demanding and monotonous work.

But it's also incredibly fulfilling work, and it's a great example of a community-driven effort to accomplish something very important: providing food.

So I think it falls into a similar category of "college is over-emphasized and we have a dwindling supply of trades-workers". While in school in a rural farm town, I never once heard anyone say "what about farming?" when discussing future career choices. It's not marketed as an attractive option. Maybe it's as simple as "farmers have the work-life balance of an emergency room doctor while making ~1/6th" (source: Dad is the farmer, Brother-in-law is the doctor)

Anyway, it's a problem I think about a lot. I didn't get into farming, but in many ways I wish I had, because it's a highly undervalued skill with a very rewarding outcome: you feed communities. How do we change the narrative? Do we need policy changes? Continued technological advancement? A push to educate the next generation of farmers within schools? I'm not sure, but I don't think it's always as simple as saying "it doesn't pay enough". That _is_ an issue, but it's not the only issue.