If your account has a permission of type parent within a Homey family account, you can easily delete and remove individual user accounts from the your family account.
On the main screen, simply open the side menu, click on Settings and then click on Household members. You will be presented with a list of all the members of your household. By clicking on the 3 dots on a member card, a bottom dialog will appear. Clicking Remove from household will delete and remove a family member from your family account.
Deleting the entire family account
If your account within a Homey family has a parent type permission you can delete the entire family account.
On the main screen, simply open the side menu, click on Settings and then click on Delete household.
A dialog will appear asking for your confirmation. Clicking ok will delete all the user accounts and all the data from your family account.