Trust is something that takes time and repeated observations to garner.
It takes instinct.
Sometimes there is no track record to measure if you should trust someone. In this case, I for the most part am pretty trusting in that regard.
However, there are facets of trust. I trust my parents with a lot of things, omitting my personal romantic life.
The lists go on and on, and most of these lists are lists I'm not even conscious of.
Only when the time comes, and I ask myself, do I trust them, will I really know.