Probably depends on what you're trusting them with.

There have been some interesting social experiments along this line. It's surprising how many people will cross all kinds of lines with a little nudge and some peer pressure. I think the answer to this question is a curve plotted against the intensity level of the situation. In a low stress environment almost all are trustworthy, as the stakes are raised that percentage begins to fall off.

few

That's a good question.
It would depend on the level of trust, and with who, but I'd say about 40% are inherently trustworthy. A lot of countries have corruption built in to them.

A solid 30% no matter the given situation... And then I'd say up to a maximum of 60% given the right conditions and easier situations..

🧚🏼‍♂️🧚🏽‍♀️

Depends on who you are to most of them I’d imagine.

Most people are predictable which is just as useful.

25%

-3%

depends on what you parameters are like trust with secret,trust watching your kid, trust loaning money too? to me trustworthy in every way 5 % mabey

what percentage of water is potable?

From my experience, I'd say maybe about 1% or less.