None of my hoses are getting to where I would be worried.
Yup. I understand folks' concern regarding hoses, but some of the concern may be misplaced.
Equipment is going to degrade over time, and it's going to get scratched, and eventually it will fail (need to be replaced). Clean everything well, don't stint on cleaners such as Oxiclean and One Step (and others), and don't stint on sanitizing. I have 2 fermenters that are 20+ and 30+ years old, and both have had numerous batches in them each year with no problem.
The hose on my autosiphon is 8+ years old. It's starting to darken up -- that's a natural process. I replaced the previous hose at roughly 15 yo as it was stiffening, not as limber as it had been, so I had concern for that reason. The current hose is just as limber as the new one I purchased last year for a gallon-jug sized autosiphon, so I'm not concerned.
In 2020 I posted a picture of a 16 gallon fermenter that I accidentally dropped off my truck onto concrete, and it shattered. I'd had it since ~1989 and it spent a couple of decades in my NC attic (Mercury is cooler than my attic in the summer), and heat isn't good for plastic. I discovered in the best way (it was empty) that it was no longer suitable for winemaking.
All jokes aside, I'm quite happy that it shattered, as I an visualize losing 4 lugs of grapes if the side gave way!
Pay attention to the status of the material itself. Annually I drop my old fermenters, as if they are gonna fail, it's best while empty!
I have just had my first turned wine.
It's difficult to make a judgment, as there are so many potential factors for problems. I had excess of my 2020 reds which I put in screwcap bottles. I lost track of them and spotted them a year later. Four bottles had 2" of sediment, while the last one was over half sediment. The first four were fine -- I racked off the sediment and kept them separate as I was cautious. A sniff of #5 made me dump it.
Trust your nose!
The others I never integrated -- they were bottle separately and drunk first. I comment periodically on the paranoia of home winemakers, but this doesn't mean I'm immune to the phenomena!