JSFiddle - React, Tailwind, and code Playground

HTML

<input type="checkbox" id="human">I am a human
<input type="file" disabled name="file" id="file" />

JavaScript

$(document).ready(function () {
    $('#human').one('change', function () {
        $('#file').delay(5000).queue(function(){
            $(this).prop('disabled', false);
        });
    });
});