My Mom always had fabric around and I've "always" had fabric around.
I "vaguely" remember "starting" my stash.
After thinking about it a bit, a kit might be good for a beginner that hasn't acquired a stash.
Especially if one has fallen in love with what's in it.
It would be a good idea to check with a sales person to make sure that everything is included - or to find out what else is needed to finish the project.
Even though it may seem expensive up front, it might be more economical in the long run - especially if this going to be a one-project thing.
I've heard that some people actually don't go on and on and on buying fabrics.