Not to mention, it seems Gmail is the overwhelming choice for pretty much everyone; over 75% of users on my service have a Gmail email. If Google did actually sunset Gmail I’m sure every website would implement an email change system pretty quick to make sure their own users aren’t left out on in the cold, unable to log in post-shutdown.
I avoid 15 years of headaches and cost and only have to spend a few days of work transferring emails to a new provider? Sign me up.