How do I delete my teen's Instagram account?
You can't delete your Instagram account from within the app. Instead you must visit the Delete Your Account page on instagram.com. You can do this on your comnputer/laptop or from your mobile device's browser (Safari/Google, etc). If you're not logged into your account you will be asked to log in. After logging in, select a reason for deleting your account from the drop-down menu, then click or tap the Permanently delete my account option.
You can't delete someone else's account unless you know their log in information. Instagram will not delete someone else's account for you, even if it is your teen/child.Deleting your account will permanently remove your profile, photos, videos, comments, likes, and followers. If you rather take a break from Instagram and keep your history, then you can temporally disable your account in the Edit Profile section.