All I can add is that I'm very glad that I've no Google accounts nor use its services even though I've an Android phone.

You are also very lucky. There are countries where all mainstream banks (i.e. the ones that can give you the whole range of everyday banking services) require an app from Play Store, with Play Services as a hard dependency to even launch, for online banking.

Yeah, one of my main points of contact was a gmail address for a number of years. I've switched over to giving out an address on a domain I own but it's a huge pain migrating contacts over.

I hope the younger folks learn better the lesson to own your nameplate - even if you just end up forwarding message to gmail or what-not for consumption, keeping control of the nameplate gives you the flexibility to shift later on.