Google Messages will make it easier to nag contacts to try RCS
Upcoming feature texts an 'invite' to SMS users

Google's been a big proponent of RCS, the standard that modernizes text messaging with features like high-quality media, typing indicators, and read receipts. Apple added support for the standard last year, effectively negating some of the benefits of its proprietary and exclusive iMessage platform, which offers similar features to RCS. Now, Google's working on a feature to increase RCS adoption on the Android side.