UK farmers: How did you become a farmer?

Odd question I suppose, but I've only just got around to finishing Clarkson's Farm on Prime Video, and something that struck me from the very beginning is the sheer cost of the whole thing. In Clarkson's case he already had the land, but he still had to buy a tractor, all kinds of farming implements, some animals, and so on, and he spent thousands upon thousands between everything. And I'm pretty sure he said he had something like a thousand acres of land, which won't have been cheap in and of itself. Even ignoring the meagre profits he ends up making, it feels like you need to either be born into it, or be very wealthy anyway as he is, just to get started. When you do bring the meagre profits into it, he explicitly says in the last episode that you'd be better off selling the land, putting the money into a bank account, and living off the interest. So all this has got me curious about how on earth and why on earth anyone gets into farming. (And that's a purely financial view on the matter; the backbreaking labour and long hours aren't exactly all that motivational either).