I think there are numerous layers of trust, and it arrives over time. Slowly. It also has to be earnt. Alright, we all assume a certain level of basic trust that people we interact with everyday aren't going to stab us etc, and I think it is reasonable to take it in good faith that 90% of the population are good people who want good things for themselves and their loved ones, wish no ill on anyone, and want to do acts of kindness for their fellow man.

Beyond that, trust has to be earned though. Personally, on a cognitive level I feel I have a handful of friends who have earned my trust so they know my sh#t, and I can be pretty frank. Where I stumble for now is the allowing-myself-to-be-vulnerable bit though.

Then, say, work colleagues who I have evaluated to be trustworthy from what I know of them in context, they know less than close friends, but some basics - like for example they know I used to have an acute eating disorder. Boundaries come into play too, I think.

So yes, I think there are so many layers to trust, overall. Most of us on these boards have sound reason to have a halting style of trusting, because we've learnt how much it can burn. Slowly but surely.