We forgot about nature

As a child, we had a small dog called Puck (after Puck of Pook's Hill) and we had him since birth essentially. Due to the nature of his name, he got used to his outside name too. 'Lob'. This was required as the eyebrows of neighbors upon hearing us yell 'puck' up and down the street were raised in disapproval. So there it was , Puck inside and Lob outside. It made complete sense to us. One day, he was just no longer in the yard. He was old and grey and I missed him. My dad told me dogs just know when nature has finished with them and they go away to die in peace.
Years later as a teenager, my now wife's family had a golden retriever called Benji. A lovely family member they'd had since a pup and at the age of about 14, simply went down to the back garden, lay down under a bush and died. Nature was there big and proud but the yard fence was bigger and prouder, stopping his most natural migration to his final moments and death.
It seems to me that we've forgotten about nature in some respects.
As some of you may have read, my mum is suffering chronic dementia and resides in a secured high dependency facility. When I say high dependency, I mean total dependency. There is just no one home anymore. Walking into such a place is quite confronting. There is a range of oldies in varying states of oblivion. Some happy, some with verbal diarrhea, others seemingly quite normal and then there's the one that are no more. The blank staring eyes, unable to talk, walk, control their bowels, feed themselves, smile, laugh, cry or even acknowledge their own existence. Nature has finished with them but we haven't. Resources a plenty are poured into these places keeping our elderly comfortable and fed and cared for and I question why. I can say this because my own mother is there in that bucket. It's impossible not to feel differently about her given her condition, but I feel for the mum I used to have, not the existing remains. The mum I used to have was mum, she was OK, not the best, not the worst but was OK. The collection of cells passing themselves off for mum nowadays is nothing short of criminal.
But what makes you god? I here you ask. What makes it OK for you to decide who goes and who stays? Take a look into their eyes and you'll know that answer. I am enamored by eyes. I love them. These eyes have nothing, no spark, no life, no knowing, no appreciation, no joy, no sadness, no nothing. Nature has taken that from them but we have as a society decided to overrule Nature, sideline it, render it a passenger and forge ahead maintaining life at all cost. We are wrong. Trust nature, let nature decide. We forgot about nature.