Nah, no regrets. No kids but I don't think it's too much to expect that if you plop your kids in front of the tv or ipad you should have some idea what's on it. Ask me again in 5 years.
At any rate I was thinking more about this, an easy middle road solution would be to get daily reports of what's watched optionally emailed to you.
If your kids are curious enough to watch your adult stuff they'll be curious enough to figure out how to access your files on their own. Might as well know about it.
Above all, I think that it is curious that non-parents want to have an opinion about the necessity for parental controls... :unsure:
It is quite apparent that you have some biased ideas about parents and parenting (probably based on what you have "learned" from the media, i.e. that kids watch too much TV, maybe with an added twist of socioeconomic pseudoanalysis).
Let me give you some perspective and broaden your horizon...
My close family currently consists of myself, my wife and our two kids. We are highly educated academics (two PhDs).
My oldest son (2,5 years) is very capable with his iPad (often more so than his mom or his grandparents). He has learned the numbers and the alphabet and a lot of other advanced stuff independently by playing with it, e.g. when he didn't feel like playing with his parents (we do that a lot too) or with his Lego. The whole day long (apart from the weekends) he is in kindergarden (7-8 hours a day) where there is only "classic entertainment" and other kids available (no iPads or PCs or TVs). In between we also find the time to include him in cooking our meals, going to child gymnastics, reading old school books and other non-IT stuff...
So we don't "plop" our kids in front of the telly or an iPad - we deliberately allow it to give him a little break (1 hour max, and usually he wants to do other stuff after 30 min) from forced human interaction. With the iPad (or with carefully selected intelligent TV shows) it has the added benefit that kids actually learn something. And I am always within 10 meters of him in the same room when he uses it...
On his iPad my son has the Plex app - he knows it as his own backyard... By only allowing him to access the sections of our library that I share with him via myPlex, we actually have some degree of parental controls, but as of now it is more like a hack than an actual feature.
Certainly it requires me to maintain and cultivate library sections based on an archaic file system folder hierarchy. Plex is all about metadata, and by logical extension parental controls also should be based on the rich metadata already available.
Finally, sending me an email that my son has bypassed my rudimentary myPlex based controls (it really only requires him to flip one switch in the iOS app - the "Find Nearby Servers" switch) and watched the scary scenes in The Exorcist won't reverse the unfortunate effects...
