For me, the primary concern are the horror stories of having everything in your life linked to a gmail account and then getting locked out with no recourse from

For me, the primary concern are the horror stories of having everything in your life linked to a gmail account and then getting locked out with no recourse from google support. My secondary concern is to have a custom domain and email aliases. In my country the abuse of personal information is rampant and I would like to start pursuing companies who sells my information without consent. Now if only I could generate a mobile number (msisdn aliasing?) for each entity I interact with, so that I can know who sells my number to spam callers.