I believe that one thing that can influence the age numbers is the way that many of these large family farms are structured.
Dad is 65 years old, and has 3 sons (43, 40, and 36) that also farm. Dad formed a corporation 25 years ago, and is listed as the President of the corporation. In essence, the three sons are simply "employees" of that corporation, and may or may not be listed as corporate officers. They are buying land and expanding their operations, but all of those acquisitions are falling within the original corporation.
I have a very good friend that farms with his 2 brothers. They farm 23 SECTIONS of ground. He is an equal partner but is personally listed on none of it. It all appears in his oldest brothers name.
As far as the subsidy conversation, it is very difficult to quantify. As farming operations grow, the tax shelters also grow. It is nearly impossible to cite statistical data to prove the fact that government subsidies have had a net effect on bottom line income. The term "farm subsidy" is a fairly general term, and these subsidies are not easy to identify. The most easily identifiable subsidy is the cash payment, mostly because it is the largest subsidy in terms of dollar amount. However, there are Marketing Loans, Conservation payments (getting paid to NOT farm), Federal Crop Insurance (which is a whole different conversation!), just to name a few.
While X-Bar and I do not agree on everything, I am going to agree this time. What he said is that subsidies have made farming [more] lucrative [than it was back when farmers worked hard so their kids did not have to farm]. I believe that anyone and everyone that can honestly say that they believe farm subsidies have NOT made farming more lucrative is being very naive.
What scares me more than anything is the trickle down effect that we are going to see when corn prices aren't $6.00 anymore. The cost of production increased as corn prices did, and I am not just talking about the self inflicted costs. Now the price drops, but fertilizer and fuel don't. The farming related market that I see having a rough couple years ahead of them are the implement dealers. I can see them going from trading with a farmer every couple years to not trading for 5 or 6 years. I know that their service work will increase, but I don't know if the implement dealers can weather the storm.
The thing that I don't understand, or can't seem to figure out is how a group of people that have become so heavily dependent upon these subsidies are such Raging Republicans? I thought that fundamentally, a Republican was all about small government and every man for themselves......except when it effects them??