Why can't SMS be turned off?

Root! Then delete the SMS module! That's it. But I need to remind you that deleting it may have an impact on the normal use of your mobile phone, such as not receiving SMS or delaying SMS. It is best not to delete it. If you download it now, you can also receive the text message. If you can, there is no need to delete the original software module. I hope it can be adopted. Happy New Year!