@korshlov ... not necessarily
there's more to it, but i don't see how i should waste time explaining because I may be wrong.
Everything varies in humans, we're different though we may seem to be the same
Opinions/ideas, methods, knowledge, talents, wants, needs etc;etc;etc;.
As humans, we can adapt, we're self-aware and all. things change, we evolve, there are many ways for things to be done.