If someone is being completely negligent then yes. Some people will take offense to you offering simple advice even if it is good for them. I find this a lot with males as opposed to females. No guy wants another guy telling him he’s wrong, its sort of a macho thing. Females on the other hand are a lot more receptive. Sometimes I just sit back and shake my head, knowing the injuries i’ve sustained while using a proper warm up, form, and cool down. Some of these people will not be around for long going the way they are going, but you live and learn.