I'm talking about the sensitivity of the screen but it shows that the tiniest amount of moisture in the pocket lining which you wouldn't even notice, combined with contact with your body, can activate something that is designed to detect a small electrical change. Obviously it's not going to push the button in as well.
So, what is the problem here? Do simple test, cover you finger into material and try to activate. I don't like pressing buttons, it is extra step. I am activating Siri every time I try