I opened Message on my Mac the other day to type a message to a friend. It switched to green and was not successful. WTH? Grabbed phone and asked him. Oh I move

I opened Message on my Mac the other day to type a message to a friend. It switched to green and was not successful. WTH? Grabbed phone and asked him. Oh I moved to an Android. Painful. The fact that I have to use the phone to text him bugs me to no end. My current group of core friends are storing a party tomorrow and it is simple as it is all the blue text and I can read the messages on everything I own. Having to revert to SMS would be painful. The funny thing is a few years ago we would all use Google Talk...yah. Looking at my “chat” folder on my iPad, phone etc, I have Google hangouts (work and gmail friends), LINE (Japan, Korea, Singapore), Meet (google for work meetings), Discord for gaming, and Webex (work for customers that do not use Google for email). It is painful. I did drop IRC a few years ago.. Only if XMPP had really won...oh well.