Im new to all coding

I want to know where to start I believe coding will be necessary in the future. I want to learn so that I can understand and teach my children to code. I have 7,8,11 have them doing learn coding apps now. I want to be able to understand smart contracts, write and deploy them myself. WhereHelp me figure out where to start

The curriculum has a web development focus (HTML, CSS, and JavaScript) but also has some Data Science using Python. Was there something specific you wanted to learn?