In the early history of the human race, the invention of tools separated us from our ape ancestors. Yes, an ape will employ a convenient stick to defend itself during a attack by predators. Humans advanced because they had the foresight to carry that same stick as a tool in case it was needed. I suspect that the earliest tools were nothing more that sticks and bones that were the right size to be clubs. It is not surprising that the groups of humans who evolved and invented improvements to the tools in the form of spears had a better rate of survival.
Human history is a chronicle of improvements in tools. The application of fire added the sharp edges and strength of forged metals. Bronze is a lot sharper and durable than the wood and flint that is replaced. The earliest adopters of bronze had an advantage over the primitive tribes who were slow in adopting the new. Once recorded history set in, we see the record of the success of human groups like the Hittites. As an early adopter of iron, they dominated their era. I can imagine the fear that a soldier with a bronze sword encountered when facing an adversary with an iron blade. The point being is that a tool is no longer useful when it cannot be employed to accomplish the needed task. I cannot picture carrying a spear to protect myself from identity theft.
The success habits that set the human race apart at the beginning still apply today. It is still important to carry tool to protect yourself from predators. It is too late to realize that you need a mileage trakker to tabulate your deduction when the IRS visits for an audit. At that point in time that predator takes away your hard earned cash with penalties. The concept is the same. Humans with a survival instinct carry and work with the tools that can protect them from predators. Yes all tools require some training and effort by the beneficiary. Modern tools are no different than the early spears that only were helpful in the hands of a user who applied the time and effort to master their use.