It would be legal on Google Drive too. I challenge you to find me one example of a parent getting in legal trouble for having a photo of their baby naked on either their phone or on Google Drive.
Legal trouble is not the only kind of trouble.
I just didn't link a news article because I thought it was widespread enough.
Try "guy loses google account false positive" on Google Search
It will still cause you problems if you are reliant on it though.
I am also trying to slowly get enough alternatives that random Google decisions don't cause me misery, but...
Oh yeah, I would never rely on it for plenty of other reasons. I do back up some photos to it, but it's one of multiple backups. I look at it as a redundancy.
Well, simply that, a false positive on the drive gets the whole Google account removed. Not just the drive access, but all your past mails (and the future mails you will receive because you are unable to tell others that you had to change your Mail ID), all other accounts you made using said ID become harder to access and same for other Google services (paid or not) that you might be using at that moment.
And you can't even send a user data retrieval request.