Being serious for just a moment. Yes I can see there is useful stuff they do but I'm very worried about how insecure they are and how many seem to be stolen and then used to rob folk of their life savings and impersonate them to take out crippling loans etc. I think the phone companies, device manufacturers and program designers/companies need to really step up and sort this out.
On a personal basis, I'm quite disturbed at what I observe in my 11 year old granddaughter - who was given a fairly basic phone earlier this year. Before she had the phone she spent a lot of time messing about with me and her younger brother, now she's glued to the phone nearly all the time. We insist on her leaving the phone at home when she's out with us but, as soon as we get back in the door, she can't wait to get back on it. I've looked over her shoulder a number of times and consider it my duty to keep an eye on what she's looking at and it seems to be all "girly stuff" like false finger nails, make up, etc but I worry she'll come across something "nasty".
Having said all that, Mrs J and I have decided we're going to buy one, which we'll share, because it's becoming impossible to do our banking since they closed our only remaining convenient bank branch and also there seems to be stuff like car parks etc which you can't use unless you have one. Recently not having one made dealing with my privately funded operation quite difficult too as they wanted me to access financial and physio stuff via QR codes. I however, will continue to give our landline as my contact number. - Mrs J will be "guardian" of the new phone, which we decided because her extensive network of female friends all have them and keep sending communications containing images which her existing "dumb" phone can't do anything with. Doesn't affect me as my pals are all old dinosaurs like me and my kids know not to send anything like that to me (they send images to my laptop via email if need be.)