I think that last question needs to be "do you really need jQuery in 2014 on mobile?" If we're talking mobile, then chances are you can do without jQuery. You

I think that last question needs to be "do you really need jQuery in 2014 on mobile?" If we're talking mobile, then chances are you can do without jQuery. You can almost take for granted that the mobile device has a webkit-based browser. Yes, I say that knowing that there are non-webkit browsers in use and that some browsers are based on older webkit code. If we're talking about non-mobile users across the spectrum of browsers, I would recommend still using jQuery. It's just too useful in dealing with browser inconsistencies and bugs not to use it.