There is a case to not use JQuery: When you really don't need it. I.e. you have one call to JQuery and it can easily be done natively. Then by removing JQuery y

There is a case to not use JQuery: When you really don't need it. I.e. you have one call to JQuery and it can easily be done natively. Then by removing JQuery you make the page download and load faster. If you are using just the basic JQuery features you could consider Zepto instead, so a smaller download but still giving you the abstraction you desire.