Yes, but only one account is shared by the whole family.We just use your email address to authenticate you so we can send you a password reset email in case you forgot your password.
No problem, we will send you a link to reset your password.Click on Forgot password on the login screen.It may only be in english though.
Yes,
Kids actually need to use their fingerprint since you don't want to give them the user account's password. It is the same for the whole family.
Sure.An option is available on the left menu of the parent to delete the account.Be aware that you will loose all your data!