I do like I Player I think it is better than the playbacks the other channels have, I pick and choose what I want to watch. We also have Prime and Netflix, the more choice the harder I seem to find anything worthwhile though choice overload often leads to complete disinterest in most of what's on offer as far as I'm concerned. I Player is often the first go to channel for me. I can quite understand that the BBC don't have the captive audience they once would have had, I doubt whether either of my children would bother to watch anything much on the BBC, maybe David Attenborough's Blue Planet and the like would be an exception, but they are very much of the Netflix generation.
It does make me smile when programmes aimed at a younger demographic are made by the BBC because my perception is "they are either out or if they are in they are watching Netflix"
Going back a few years when my grandchildren were little I just loved all the Christmas programmes for the very young like The Gruffalo, they are still there but sadly they've outgrown them.