Even if you use nothing but touch events on IOS, the 350ms delayed click can still cause problems.  
For example, suppose you want a button to pop open a small form over the top of the page and automatically focus the first input in the form. You can wire up a touch event so you don&#x27;t have a delay, but then the input gets focused and then un-focused 350ms later, because a delayed click happened somewhere else on the page. Or maybe a different field gets focused because it&#x27;s now directly above where that button used to be.