JSFiddle - React, Tailwind, and code Playground

HTML

<select>
    <option>Something</option>
    <option>Something else</option>
</select>
<select>
    <option>Something</option>
    <option>Something</option>
</select>

JavaScript

$(document).ready(function(){

  $('select').one('focus',function() {
     $(this).children("option:first").remove();
  });

});