In my circle, it's uncommon to not use canned stuff or mixes. In fact, I'm considered a radical for not using them.
Growing up, cream of mushroom soup was a staple. Beans come out of a can. Soups, stews, and cuts of meat were flavored from a packet. When I moved out of my mom's home and then got married, I had no clue how to cook without those things. I was legitimately confounded at the idea of making, say, green bean casserole or potato soup without cream of mushroom soup. And actually, I had a hard time finding recipes for the things I wanted to cook that did not use those ingredients.
It took a couple years and some research and experimentation to learn to cook without canned goods and mixes. Now I am a very competent cook and I don't have to rely on canned, boxed, or packaged goods to make a great meal. In fact, at Easter someone forgot to bring the requisite "3 cans of green beans and 1 can of cream of mushroom soup" for the green bean casserole. In my family no holiday meal is complete without it, so I made a good flavorful white sauce and mixed it into some frozen green beans. It was very tasty.