I managed to quit WhatsApp for about a year and have recently been sucked right back in. I nearly lost a significant sale because a client claimed they sent me

I managed to quit WhatsApp for about a year and have recently been sucked right back in. I nearly lost a significant sale because a client claimed they sent me a message on WhatsApp about a new purchase, which I obviously never received. It was only that about a week later I made a client contact call that I found out and the sale was made. More recently, my young son’s sporting clubs only seem to communicate crucial information via WhatsApp - is training going ahead, what time, which equipment to bring and changes in location etc. The above really made me realise that the vast majority of people care not a jot about the same things I do in terms of privacy and autonomy.