Congrats on making that decision...it will go a reasonable distance in the fight.
I presume the issue is that you can set them up for sub accounts but it doesn't work for the main admin/parental account?
Do you have any issue with someone creating an admin account and making you the sub and setting up permission from there with no way for you to have access to the admin account?
That may work if you are pretty static in your need for settings changes.