My sister is a fierce data watcher and communicating anything by WhatsApp is very irritating! We have a WhatsApp group with my other sister - mainly to sort out visits, appointments etc to our elderly mum who lives on her own. You get no response at all from her during the day when it matters and then she replies about 11.30 pm when she’s turned it on again! I understand that she has a right to do what she wants but it can cause real irritation.
She is just the same with texts.
Her right to choose trumps all requests for her to change apparently.
What would you do?