JSFiddle - React, Tailwind, and code Playground

HTML

<fieldset class="attribute_fieldset" rel="">
    <input class="left cb_group_5" type="checkbox" value="group_5" /> 

    <select name="group_5" id="group_5" class="attribute_select hidden">
        <option value="23" selected="selected" title="non">non</option>
        <option value="24" title="oui">oui</option>
    </select>
</fieldset>

JavaScript

//if we check a checkbox, we trigger a click on the select below
$('.attribute_fieldset input[type=checkbox]').change(function(){
		
	var target = '#'+$(this).val();
		

	if(this.checked)
	{
		$(target+' option[title="oui"]').attr('selected','selected');
	}
	else
	{
		$(target+' option[title="non"]').attr('selected','selected');
	}
		
		
});