> Looking at Google Analytics for a website we were about to launch, I was surprised to see hits from others in the development team, tracked by Google

So you are OK with making Google track your users but you don't want to be tracked yourself?

More likely than not, their employer is ok with making google track their users. I doubt it's the decision of this particular developer.

Indeed, it's not my decision.

I'd like to use something we host, then we probably wouldn't need to have the EU cookie warning.

They might say they're using a vanilla browser to ensure everything works, but it's worth mentioning it's possible to filter IP addresses in Google Analtyics to stop those hits from being counted.

you mean you block collection of Google analytics as an end-user? how does one go about that?

Virtually any adblocker has tracking script blocker lists as well, which includes Google Analytics.