It's all by design as a good maintainability is not good for business for obvious reasons: 1. It's require much more efforts in designing and manufacturing and

It's all by design as a good maintainability is not good for business for obvious reasons: 1. It's require much more efforts in designing and manufacturing and thus cost would be much higher. 2. It reduces failure rates dramatically and thus leads to much less sales. 3. It reduces revenues from servicing. Examples: 1. Built in non-removable battery in electronics such as phones. 2. Glues instead of screws in electronics such as phones. 3. Soldered on CPU/RAM in laptops.