Yes, your personal experience is not the same for the average consumer class. Which is the majority of phones & cars are designed for and sold to.
"As of 2023, the global average replacement cycle length for a smartphone is 3.6 years."
I'm not disagreing on a technical level. I agree. I use a pretty cheap ass phone myself that I bought off the rack.
I think it's clear though that phone makers and telecom companies are more than happy to sell people a new one every few years and intend to continue doing that.