There is a reason why. That type of thing tends to lead or result in a sort of "rolling up of the ladder" as it were. You're looking at a bunch of people who p

There is a reason why. That type of thing tends to lead or result in a sort of "rolling up of the ladder" as it were. You're looking at a bunch of people who probably got where they are through acts of autodidactism. Certs don't really matter to anyone except the industry handing them out. It's a parallel market that tends to grapple onto any type of business model, and in some cases (barber/hair stylist/aesthetician) are straight up regulatory power grabs/gatekeeping to deter competition. The capacity to learn, to communicate, and to a degree the ability to reckon are literally the best indicators. The rest is vocab pickup. The HR world may like them, but as a hiring manager, I find that I rarely get good signal out of them. Government work is notoriously reliant on them, but I'm not sure there isn't some alternate signal of "willingness to comply with arbitrary bs" that's being selected for there. My 2 cents.