Welcome to ETS.
Truth is no you can never be too prepared but that said chances are that you can't always have that preparation available.
One needs to develop survival SKILLS and KNOWLEDGE before toys and gear.
I could give a lot of people I know a box of matches, tinder, a knife, cordage and a tarp and they would not know what to do with it even after watching all of the past seasons of "Survivor".
On the other hand being able to survive with nothing takes skill and knowlegde that allows you to use what is available.
For me if I have a knife and a way to make a spark I am pretty good to go in a lot of situations. To enhance my abilities I try to learn about primitive and early American skills. These everyday skills our ancestors new kept them alive more than just their preparation. For instance look at the typical "possibilities bag" carried by trappers and mountain men. A few tools to take advantage of a lot of skill and knowledge.
Learning how early peoples improvised shelter, containers, cordage, fire tools and the like allows you to use what is available if you find yourself without your survival preparations.