Importantly, make sure your wife and children will love it, too. OK - you said you won't put your kinds into it, but your wife will need to. My partner grew up in the country and her best friends were farming families; she used to help out (mainly lamb farms). We decided to buy a small holding where a farmer would run sheep on our property in return for some maintenance while she was going to tend to a small cropping operation and keep a few chickens. The idea was not to make money as a living, but make enough to have the thing pay for itself.
She was really looking forward to it; as were the kids. For the kids, the novelty of collecting eggs wore off pretty quickly and my son quickly lost the zeal for hopping on the ride-on. We only had 13 acres and the amount of machinery required for two people to just keep things under control was mind boggling.
The wife also learned pretty quickly she wasn't born for "the good life".. she admits she is more Margot and none of Barbara. We made more from renting out the 1 bedroom studio than anything else. In the end, we sold it... Thankfully we broke even (including sale costs) but it took a long time to sell and in that time you have to keep the place pristine.
As
@The Byre says, there is a lot one has to do oneself if they don't want to go bust. You don't have to know it all when you start, but you have to be prepared to work hard and research.. YouTube was a life saver for me.. Sometimes, the bank balance had to take a hit..
Farms can provide multiple income streams... Learn to use them because you will need them all.
You'd be pretty brave to start with too many types of animals and different crops.. Research your market - what are different animals and meats going for, for example - and what has been their trends over different time frames. Also look at commodity futures - what looks like giving the best future return. And then put together a plan.. where, what sort of land you need, how much to make it viable, what cooperatives are there, etc. You will learn to become a lot more self sufficient in maintenance, etc. However, rural communities can be close and things can be bartered. I never received cash from the sheep farmer who used a lot of my land, however, I was furnished with the odd butchered lamb. I also provided some computer troubleshooting skills for a fencer to show my how to fix a fence.
I agree - tenancy is not a great way to go.. Even if you can make a living out of it, and you would have to be doing something very well on the farm to do it, the land lord may not extend the tenancy and receive the future benefit of your hard labour...