I assume you are a responsible professor. From my experience, most professors if not every only cares about their research.
Teaching is like a job not giving them any positive feedback, so why they care?
And TA-ship is usually paid by school meaning no professor can fire TAs.
Similar story happened in school as ta, if a student did something bad or annoyed the TAs, they would Target the student and give a bad or zero grade on problems that can not give a back/white answer. This is usually on marking final exams because few students will review the marking and thus few if any consequences will happen.
I think the pass rate for such course is very low, 50%-ish.
I once took a similar course but was about mechanical architecture. Pass rate was 50-60-ish. I spent whole summer studying it and only got 4.75...
But indeed, I learned a lot.
No matter how they love to work at small farm, they will be eventually replaced by machines when machine learning farming equipment becomes affordable to small farm owner. Then small farm will be one man farm.
After that, the lifestyle of supporting local farm losses the meaning.
You are misleading people here. Top CS PHD or other PHDs won't go through H1B; they are most likely going through EB1 which is more efficient. You don't need to wait years to get a green card. Also, people from countries like Australia, Canada, Germany, don't need H1B. Only people from Iran, India, and China need H1B.
The better solution, as I talked to variety people and many people suggests, is to raise the salary bar from 60k-ish to 100k-ish, and filter out the unequaled candidates.
I study at Vancouver UBC and rented a room in a house in the nearby area. I could tell that the Canadian government has started to investigate the corrupted $ because one day a government official came to "my house" and asked the information about the previous landowner. It seemed that he used the corrupted $ to buy the real estate and make more $