Your jeans don't have 0 day exploits whereby someone halfway around the world can steal your banking credentials, private photos/emails, cryptocurrency, etc. Forced obsolescence exists, but I wouldn't put it at fault here.
If you want to blame anyone, blame Apple for locking down their hardware. I still use my old Nexus 6 (released 2014) with an up to date version of LineageOS from time to time. That's impossible with iDevices without a lot of hax or workarounds. 5-6 years is a generous amount of time for a vendor to support a software/hardware stack on a consumer device. It's more time than I've gotten from Google officially.