Can the average human train their voice to be capable of singing well enough to be ‘decent’? (not pro)

Yes. And moreover more people than not have perfect pitch when singing from memory https://news.ucsc.edu/2024/08/earworms-music-memory-perfect-pitch.html

The Farcaster formerly known as Kchamp. Books, beats, bodybuilding, bright ideas and beautiful things.

katherinechampagne.com 

Love how the fact that our brains are already capable of doing some amazing things without us even realizing it was pointed out.

At the end of the day, It's all about embracing our unique talents and quirks, and not letting fear or self-doubt hold us back

But I’ll say music is for EVERYONE, regardless right?