Missing. Please ignore people who say its up to them what paperwork they do or dont do! The consequences will be YOURS if they dont. Of course you could walk away, state that you told them to do LPA's etc but they will quite honestly look at you with puzzlement and forgotton they had an issue with it.
IT ALL COMES BACK TO YOU TO SORT OUT!
I was lucky because I didnt get into long discussions about whether to do or not. Save yourself. Do NOT have long winded discussions which dont go anywhere and go round in circles.
Back away somewhat whilst they are 'thinking' about it. So if you visit twice a week say you will only be coming once a week.
If you think its bad now just wait until you get chucked some issue that needs unpicking with paperwork going back years and a parent that can or cannot recall what they did.
Depending on what they are like I would lighly touch on what you did to resolve something but do not get into endless conversations. Mum quite liked knowing something had been dealt with. What she really loved once her house had been sold is giving generous Xmas presents to the family. Truly loved it. From spending very little because it was all too confusing she was now giving presents worth £500.
I have a friend who looks after her parents accounts. They dont have LPA. They dont do direct debits or Standing Orders. Everything done cash or by cheque.
I will be frank here and say I wouldnt be doing all the running around that that entails.