It is a physical and very rough job that demand that you are available 24 hours a day half a year and nothing for the next 6 months.
They plow, sow, maintain and harvest their crops from spring to the very end of autumn.
They usually make sure that there is enough water and nutrients for the plants to grow and keep an eye on the bug and animal that eat the plants.
Most of them work in a field on their land, but recently some of them work in a greenhouse and in urban area.
There are plenty of formations in CEGEP or college that will help you or you can just start it it yourself from a small scale.
It depends on what crops you are growing and the scale of your operation.The median income is $40K to $55K.
You can study some soil enrichment techniques and new ways to make your harvest and sowing more efficient.
The short period for the harvest can be nerve-racking with the financial insecurity around a bad harvest. Also, with mechanical tools, physical accidents may happen.
Yes, they might because farming is a repetitive task those robots are good at. There still would be some farmers to lead the operation, but way let employees in the fields collecting the crops.
With the farm on their land, They usually retire when their children or another person takes over the operation of the farm or when they sell the farm for urban development.
To conclude, farming is a hard and exhaustive job that lets you cultivate your part of land. It is not the best job, but it is rewarding to see your work coming out of your soil.