Besides the whole debt issue, and what it costs to get into farming, one of the biggest things is that many , maybe not most but dang close to it; young people just don't want to work that hard, 7 days a week, for little to no profit... or even for not very much of a paycheck. It has been discussed on other threads, but if you figure in the cow/calf business, you might make $150 to even $250 a head profit over expenses, on calves; it takes 100 to make even $25,000 for a years worth of HARD WORK. Why do it when you can work a 40-50 hour week for $40 to $75,000 a year with most if not all weekends off, vacations, sick days, 401k's, health ins and such.... Why do you think so many do it as a "hobby"; partially because they can't make it farming like you once could; partially because we like the cows so we keep some. All you have to show for it.... IF YOU ARE SMART AND LUCKY, is a paid off farm, paid for cows that are getting older, and paid for machinery that is getting worn out, and a "paid for body" that has more aches and pains and worn out parts than you ever thought possible.
Even the "specialty niche" farmers find that if they are successful, they have to expand, then there is more labor, land, equipment,.... and they are getting worn out too.
We used to rent and "make for hay" alot of land. But then you get into these landowners that want more and more and then you have to have more equipment to get around to all of it and then you can't get the help you need. We are cutting back and giving some of it up because we cannot justify the costs against what we can get in a return.... with NOT COUNTING OUR TIME. I am 65, my son 45; with the accident he had, and not able to push as hard, plus my joint issues, we cannot keep up what we did even 5 years ago. There are young guys in their 20's and 30's that don't want to get out there and sweat and some aren't working anywhere else.... Let the gov't take care of them or they are on unemployment and don't want to sweat a little for some under the table cash money. The ones that have said they wouldn't mind helping don't get off work until 4 or 5 or 6 in the evening. Hard to make square bales that late in the day.