At least the things coming out of China do. A TV infra red ‘magic eye’ lasted six weeks. It’s replacement didn’t work at all (third one in the post). My mobile phone charger just got into its thirteenth month before packing in (conveniently out of warranty) and a mouse I bought just last week has no vertical movement after about two hours worth of use.
There’s cheap and there’s cheap crap. Actually it is almost impossible to buy these kind of products which are not sourced in China.