It's the equivalent of email and SMS here, but worse. Appointments use WA. Deliveries are communicated through WA. Pretty much every physical social group uses

It's the equivalent of email and SMS here, but worse. Appointments use WA. Deliveries are communicated through WA. Pretty much every physical social group uses it - residential communities, alumni groups, school groups, family, friends. I've been pushing people at work to just use Slack but they're more like "contact me on WA for emergencies".