Goats are moderate keepers, i wouldn't call them easy to care for but certainly not hard. Its not like a dog who requires constant attention. They are farm animals, after all. If you have kids i suggest wethers(castrated males). They are the friendliest and usually cheaper than does. You do not want a buck. They are smelly, possibly dangerous, and all around not a "pet". The only people who i know that have bucks use them as breeders. Wethers are the best pets. You need two or more of them. Goats are very social creatures, and since you can't be with them 24/7, they need another goat who will be. Goats establish bonds with each other, and actually will have specific goats that they recognize as friends. Good fencing is a must. Use 4x4 goat field fencing or 2x4 welded wire. That way they can't get their heads stuck in. If kids are going to be around them, you may want to get your goats dehorned. Horned goats aren't usually dangerous, but can be around kids. They love things to jump on and climb on, such as tables, benches, spools, and chairs. Make sure to include that in their pen so they don't get bored. Goats don't need much space if you don't care about having the pasture be dirt year round. A 30 x 30 pen will do just fine for 2 pygmies if you feed hay. If you want them to be able to graze, i would allow them a larger pen. You will have to feed hay in the winter anyway. Some goats are picky about what they eat, others are not. All depends on personality. Ive had goats who ate paper, straw, and product labels. Ive never had a super picky goat, but as a general rule, keep their hay clean, dry, and off of the ground. Use a hay bag or a manger. Orchard grass is good for goats, they like it. A little on the expensive side, but worth it. They will need clean water at all times. Grain is usually fed 2x daily depending on the feeding regiment. Grain is like candy to them, they love it. Don't feed to much, about a half cup per goat is good. Goat minerals and baking soda should be provided free choice 24/7. Minerals you can buy in a block or loose. Mine like the block better. Whichever works for you.
Sorry for the long read. All in all goats are pretty simple to care for once you gain some knowledge. They are very fun to keep and to have around.