Phones in studio vent

I know this has been covered - but I have to re-vent. I do not understand why people cannot be without their phones for 50 minutes. This week, in a 7:15 AM class, someone actually sat and scrolled/texted on her phone while the rest of us were stretching at the end of Define. I know she is not a doctor and scrolling IG doesn’t seem like an “emergency” situation. There have been several IG and Facebook posts from our studio about the no phones policy - but it is not being enforced:(. It is so irritating!