It has nothing to do with warranties. This issue currently didn't carry over to cars at all (well not exactly) for the most part you are able to do your own car

It has nothing to do with warranties. This issue currently didn't carry over to cars at all (well not exactly) for the most part you are able to do your own car repairs. Parts exist, both oem and after market. You can even find instruction manuals. But this is not true for tractors.