Unpacking my quotes, I mean it like this: most people don't choose to use iMessage because of its features, and to look after their groups. They mainly use Messenger, WhatsApp, Telegram, Snapchat or Signal for that purpose. You _can't_ use iMessage outside of niche groups because of the roughly 50/50 split in iOS/Android ownership [0].

People do use iMessage, because it's the SMS app on their phone.

[0]: https://www.statista.com/statistics/262179/market-share-held...