You go girl!!!! You made your point well but I am sure you will still get flack from others. I never show up early for a date for the exact reason you stated, she says 7pm, I show up at 7pm and maybe a couple minutes later but then again I usually text to see if 7pm is still okay, never know, she might have run into traffic or had something pressing to do when she got home. Setting a time is not always cast in concrete unless it is needed.