So, a handshake to someone who believes that sort of thing is like being a republican or a democrat. They use it as one minor signal of values. It's a tribal th

So, a handshake to someone who believes that sort of thing is like being a republican or a democrat. They use it as one minor signal of values. It's a tribal thing. They aren't using it as a test of strength, but of background. You can be at a high level of competence with a weak handshake, but the handshake will show the person who values strong handshakes that you aren't from that same culture / background. It's the same sort of signal as wearing a MAGA hat.