"The real cost center for the NHS is obstetrics."
Old people are the real drain. Just like an old car, they need repairing constantly because more and more keeps wearing out. A young person goes to the doctor only when something is wrong such as an injury. Old people keep going back and back because their body is worn out.
If you want to bring the cost down, bring in euthanasia. A lot of people would choose a peaceful death over 10 years in a dementia ward busy regressing back into their childhood. That's also not covering a painful death due to terminal cancer.
Put the emphases back on the quality of life instead of the quantity.