JSFiddle - React, Tailwind, and code Playground

HTML

<ul class="tree" id="tree">

    <li><input type="checkbox" name="account_settings" value="yes">Account Settings <!-- AND SHOULD CHECK HERE -->
        <ul>
            <li><input type="checkbox" name="one" value="one">AS One</li>
            <li><input type="checkbox" name="two" value="two">AS Two</li>
            <li><input type="checkbox" name="user_roles" value="user_roles">Users &amp; Roles <!-- SHOULD CHECK HERE -->
                <ul>
                    <li><input type="checkbox" name="user_role" value="add">Add</li>
                    <li><input type="checkbox" name="user_role" value="delete">Delete</li> <!-- CHECK HERE -->
                </ul>
            </li>
        </ul>
    </li>

    <li><input type="checkbox" name="rl_module" value="yes">RL Module</li>

    <li><input type="checkbox" name="rl_module" value="yes">Accounting
        <ul>
            <li><input type="checkbox" name="vat" value="yes">VAT</li>
            <li><input type="checkbox" name="bank_account" value="yes">Banking
                <ul>
                    <li><input type="checkbox" name="view" value="yes">View</li>
                    <li><input type="checkbox" name="crud" value="yes">CRUD</li>
                </ul>
            </li>
        </ul>
    </li>

</ul>

JavaScript

$('input[type=checkbox]').click(function(){

	// if is checked
	if($(this).is(':checked')){

        $(this).parents('li').each(function() {
            $(this).children('input').prop('checked', true);
        });

	} else {

		// uncheck all children
		$(this).parent().find('li input[type=checkbox]').prop('checked', false);

	}

});