Apologies, haven't RTFT, but just wanted to say that it's very hard to make money from home baking. You have to charge so much for the ingredients, but what really costs is your time - how will you charge for that? And how will you make your product be value for money against mass-produced (but amazing-looking) cakes which are half the price?
I bake a lot, and I have done 'proper' cakes for friends (including a 3-tier one for a friend's 40th recently). She said she'd pay me - how much did I want? In the end, I just went for ingredients and gave her my time as my present (along with the cake!) and even then it was close to £60.
I've done other cakes as well for friends (children's birthdays etc) and if they want a 'theme' or a special colour combo you'll find you have to buy some kind of equipment or tool to make that happen, which adds to the cost as well. And that's on top of the basic tools like a box of a range of icing colour gels, tin sizes, icing tools, bags, nozzles etc.
People have said to me I should do it for money, but I know I wouldn't make anything like a living wage from it. And right now, people have better things to spend their (in some cases, rapidly diminishing) money on. So I just do what I've always done - cakes as presents, for birthdays and Christmas, for friends.
Oops, point of the thread - yes, have several DCats, but they are kept well away from the kitchen when I'm baking and decorating! No one has ever not wanted to eat my cakes, and they all know about the cats. But that's a private arrangement, not a business, which the OP seems to be proposing, so maybe people would think differently then.