There is absolutely no good argument for not being sober. Ultimately, substance use is all personal choice. As long as someone is a consenting adult they can do whatever to themselves. It may be upsetting. You can be concerned all you want. It is only themselves they are hurting. Someone using substances knows it's not good for them. If that person does not care what others think there's no reasoning with them to get them to stop. If you're going to tell someone to not vape or drink monster energy every day then you better be taking the steps to take care of yourself too. Are you going to stop eating junk food? Are you going to stop dining out? are you going to stop every little thing that isn't good for you?