I'm not quite a believer in planned obsolescence. However, I'm a believer in predictable obsolescence, where components predictably go bad at different speeds.

Software in cars or TVs/monitors? Predictable obsolescence.

Closed-source operating systems for computers or smartphones? Predictable obsolescence.

Floppy disks to update software on trains or planes? Predictable obsolescence.

Ethernet throughout a house? Predictable obsolescence.

Non-replaceable batteries? Predictable obsolescence.