Kids are imaginative and if you remove all the tech from your house and supply them with paper, pens, markers, scissors, glitter, and glue, then they just might become an amazing artist.
Drawing is a great hobby because your kids can do it anywhere and you can create an on-the-go art kit for car trips or when you are out-and-about. Many universities, museums, and libraries offer affordable drawing classes for kids of all ages. And if you don't have something like that in your town, then you can try Youtube, Udemy, or a number of drawing books.
Not only is cooking a great way to build a relationship with your child, it teaches them invaluable skills that will stick with them for life. I began teaching my daughter to cook since she was about three. Through cooking, she's mastered metric and Imperial measurements, understands the difference between mass and volume, and is an excellent spoon licker. Not to mention that she is really great at knowing if something is missing from the soup. Give it a try! After all, if you are cooking every day, there's always an opportunity to do it together.
Ah, the lost art of sewing. My mother was taught how to sew as a girl, but somehow, she forgot to teach me...probably because sewing at home lost its luster with consumer retail becoming so readily available. Despite my lack of instruction, I taught myself how to sew and now my little one is learning. You could definitely teach your kids how to sew. It's fun, but requires a ton of patience.
If you have a high-spirited child with a curiosity for the outdoors, then you should consider taking up backpacking together. Backpacking is a little expensive to get going, but once you do, you will love it. Backpacking is a great combination of physical exertion, camping, and enjoying the beauty of nature.
Stop by your local outdoors store to ask how you can get started with kids. They will be able to point out good hikes and all sorts of other stuff.
Give a kid a seed and he'll see how the world truly goes round. We all know that food comes from somewhere, but by introducing your child to the process, he will become closer to it than ever. You can start small in containers or you can create a big ole garden in the back yard. Let him choose a few vegetables to plant on his own, but be sure to teach him the basics of gardening.
Board games are kind of amazing -- they teach kids teamwork, logic, and how to be strategic. You could introduce your child to a new board game every week or every few weeks. Eventually, you will know what kind of games your child likes and then you can begin collecting those kinds of games. Consider starting with the classics like chess, Monopoly, checkers, Scrabble, and Clue.
Like gardening, fishing teaches kids about their food. And it is also a great way to spend a summer morning before the sun bursts out. Kids under 12 can fish without a license and it will be super easy to teach kids...if you can do it. If not, watch a few Youtube videos and wing it.