Elderly friend of mine recently discharged from hospital after a hip operation. After several days of distress and her condition
worsening (she was vomiting, had diahorrea, becoming incoherent, dressing falling off wound) it transpired that the reason her daughter was unable to get help for her was that the hospital had forgotten to put any care package in place before discharging her late on a Saturday night, and so no district nurse had been arranged to see her or knew of her existence. Fortunately she had a friend who is a nurse who has been coming round when she is off duty and helping her and managed to persuade her GP to come and do a house visit which relatives had been unable to do. A week and a half after discharge they still haven't managed to get a care package in place and still no visits from district nurse. If she didn't have a relative able to move in with her for the time being and this nurse friend to keep an eye on her medically I honestly think she would have died.
Going back a few years, but when my grandmother was in hospital with pneumonia and too weak to hold anything or cope with solid food, nurses would just plonk a tray of regular food in front of her that she clearly couldn't manage (eg a chicken drumstick), leave her, then come back later and take it away untouched. The only way she got fed when we realised what was happening was by my mother coming in every day and sitting with her to spoonfeed her soup. We witnessed her crying for water because she was so thirsty and being ignored and nurses getting stroppy with my mother when she raised this with them. When she then died, my parents raised a complaint with the hospital - got vague reassurances about lessons being learned for the future.
Another (not elderly) friend nearly died as his GP surgery wouldn't listen to what he was saying and said he was perfectly fine and didn't need an appointment or any referral. No doubt they were overstretched and short of appointments. After being fobbed off for a couple of days he went to the surgery anyway, collapsed on the floor while waiting to see if he could be seen, and turned out to need emergency surgery - staff at the hospital said another day and he wouldn't have made it.
Another friend in her 30s collapsed unexpectedly one evening when we were out and broke a rib. Staff at the hospital kept on insisting/assuming it was because she was drunk despite me and her both telling them she certainly wasn't. A few months later when it happened again it turned out she had a heart condition they should have spotted if they had run any tests rather than just x-raying the rib and sending her home.
Maternity antenatal care for me has involved a string of letters sent with the wrong appointment, the wrong phone number to change it on, central helpline for appointments not passing on changes to local hospital, impossible to get through to anyone on the phone even if you spend all day trying. Then when I turn up for appointments and see guilt trippy signs about the cost of feckless patients not showing up I wonder how often they actually tried to rearrange or never got told they had one in the first place.
And yet you are expected to be profoundly grateful it exists and get criticised for implying it isn't the best system in the world.