I could have if I had the financial wherewith all and the gumption. On the other hand, I know from others trying it that getting your own bistro working is no small task. I should have started a website, sort of like that quite young woman who used to be homeless, or close to it, in London - she has a column in the Guardian on how to make good food on a low budget. Her name is Jack something. I'd thought of it, actually probably before her and a lot of others probably have too, but I'm also a dolt about starting and maintaining a website. Too much hazarai at this point.
My own explorations are down from what they used to be, back in the day. My ex was really the good cook, especially good at making a whole meal work as a unit but never boring.
But hey, I taught my niece, and that's a good long lasting accomplishment. I remember when she was about fourteen and was up north visiting me for a while (yep, how to make suppli al telefono! and other adventures), and we went out to dinner, and she could easily describe how and why she liked the preparation of the mussels. I thought, "my work is done". I remember teaching her to roll pizza dough when she was around four or five.