Why can't I change my disabled checkbox to enable?

Simple question, so I made sure to try and a lot of solutions before posting this. I have a checkbox and I can't seem to enable it.

With vanilla JS, I've tried removing the attribute, as well as setting the disabled flag to false, and also using jQuery i've tried to use the Prop to no success.

'''html

<input type="checkbox" id="chkAllowToAdminService" name="chkAllowToAdminService" disabled="disabled" data-init-plugin="switchery">

'''

I've tried the following and none of them are working (vanilla JS and jQuery)

'''

document.getElementById('chkAllowToAdminService').disabled = false;
document.getElementById('chkAllowToAdminService').removeAttribute('disabled);
$('#chkAllowToAdminService').prop("disabled", false);

'''

No error messages at all, just nothing seems to be happening.