Store idea

Would this be a good idea?

Having 2 boys I’ve noticed the lack of clothing options and how small of the boys clothing sections are in stores. The sizes I need are always lacking and they take so long to restock boys clothes if they even do. I’ve learned that when a store has the size of something you want you need to get it right then and there or it will be gone. So here’s the idea: opening a store specifically for boys but still have clothing for girls. The store would be geared towards boys styles but still have other options. I would also have toys, games and books. This would be a 2nd hand store where you trade your gently used clothing for credit or cash. Or a consignment store. I guess I would need a business person to tell me how to do this and get started. I was thinking of maybe doing a franchise store of once upon a child but would have a bigger section for boys. Or if I can think of a good name just make my own.