When someone else is paying your way, you are not an adult. Or at least not acting like one.
As for subsidies, a colleague of mine years ago bought some farmland. He had no intention of farming it, he made money off of the federal subsidy paying him to not farm.
A friend of mine grew up on a farm. He said the usual pattern was 4 years of losses and 1 year of a bumper crop that paid for it.
Nobody is entitled to be a farmer. If you cannot make money farming, it's not the responsibility of others to pay for it.
There is a rationale for maintaining an agricultural base that can feed the country as a national security thing. Make of that what you want.