I can and have make soap, I sell handmade soaps and bathbombs, shower mousses etc.
It can depend on which type of soap you want to make on how easy it is, also there are rules and regulations if you want to sell it or give it away.
I buy mine wholesale as the costs for safety certificates aswell as ingredients if you need to buy them in bulk can be prohibitive.
Also there are safety precautions to take when making some types of soap.
Its wonderful to make and even more to use and I love making it and it is easy once you understand how.