Well, for all the 'inferior' parents, let me add that my kids have had tablets since they were 2 (well, not the oldest, as they didn't quite exist then - but he had access to them from the moment they did), with unlimited screen time (although not unlimited access) - on the understanding that if they're asked to put them down (eg at mealtimes, or if we want to go out) then they do, without a fuss.
They are high achieving academically, have a wide range of interests (often researched on said tablets), we have frequent conversations about current events, historic events, theoretical situations, we build stuff, cook, and play games together - they are lovely, polite children, which anyone who encounters them would say, and they're also completely competent with technology, largely immune to advertising (they don't watch normal TV), resilient regarding failure and supportive of their friends.
All of those things can be achieved many ways, in our case, it came with a big slug of youtube, and it's done no harm at all, especially since we spent a lot of time travelling when they were younger - and there's really only so much colouring anyone wants to do (or can do in a moving car/train/ferry/plane)