Having tools in matching colours is definitely a sign of youth.
As you get older and lose some, lend some (and the a-hole doesn't return them - yes I'm talking about you John Pinder) then you get some replacements that don't match. Eventually after many years you have an eclectic mix.
How are you on collecting random nuts and screws that might just come in handy one day? That is the true art of the cave.
https://daily-twerk.com/general/bloke-finally-finds-a-use-for-a-nut-and-bolt-from-his-collection/
I used to do it a lot.
Typically this would be responding to someone being provocative.
I decided that they were angry people just trying to make other people angry.
So now I write articles mocking them.
I am much more relaxed now.