Out of curiosity do you know how long it remains detectable? I believe they like to pull hair and test that. I’m thinking 60 odd days. Hmm, good that I shave my head. Just kidding, but I do shave my head.
Daily use in urine would be detectable for up to 45 days, with other factors (weight, etc) in play. The THC metabolite that is detected in testing is a big, hairy molecule, that not only wreaks havoc on LCMS columns, it also tangles up in your fat cells. So if you use daily, it has a much longer detection limit. You can even spot it up to 3 months, but it will typically be below reporting limits.
It has the inverse effect in saliva, where it can only be detected within a few hours of use.
I would be surprised is anybody outside of the most stringent of employers is doing follicle testing.