Simplifying is a choice.
It is possible to make many things in life complex. We can choose to carry multiple fly patterns with us. We can carry multiple line weights. We can carry accessories along.
When we don’t know any better, it may seem like the burden of carrying additional things in our fishing packs (in addition to the burden of then having to think about those additional things) will be add value to our fishing. Often it does not.
The tenkara story tells us we can leave many things behind and still have effective fishing days. After we know that we can leave stuff behind, what we then do is simply a matter of choice.