Ok. Until it locks you out forever!
Have a bunch of different mobile devices? Wanna use Google Drive? Sheets? Think again.
Google Drive will only support certain recent versions of iOS. You work on a doc...then get errors trying to open it...try to update...cant update...GAME OVER. Your device is locked out forever.
Definitely dont expect to access Drive docs/sheets on the go. Dont trust Drive to use a doc a few years later. Drive can fail when you need them most.
Lock in to Google Drive at your peril. Youve been warned.
Unhappycmpr about Google Sheets, v1.2018.062