Governments plan to use google play for government services. It is just a matter of time before it is required for you to use it.

https://news.ycombinator.com/item?id=48730729

More and more sites require you to use it be it github, or even fdroid (via gitlab).

Banking has slowly been transitioning in this direction as they close brick and mortar places. I'd have to drive 20 minutes to cash a check (which is still sadly common in the US in certain industries).