JSFiddle - React, Tailwind, and code Playground

HTML

<div>
    <input type="checkbox" name="group1" value="">
    <input type="text" name="name11" class="stat" value="">
    <input type="text" name="name12" class="stat" value="">
    <input type="text" name="name13" class="stat" value="">
</div>
<div>
    <input type="checkbox" name="group2" value="">
    <input type="text" name="name21" class="stat" value="">
    <input type="text" name="name22" class="stat" value="">
    <input type="text" name="name23" class="stat" value="">
</div>
<div>
    <input type="checkbox" name="group3" value="">
    <input type="text" name="name31" class="stat" value="">
    <input type="text" name="name32" class="stat" value="">
    <input type="text" name="name33" class="stat" value="">
</div>

JavaScript

$('input[type="checkbox"]').click(function() {
    $(this).siblings('input').attr('disabled', this.checked);
});