I think the manufacturers are designing their devices to make it cheaper to replace than repair the modern cell phone. No difference with most home electronics (microwave, TV, computer, refrigerator, washing machine, vacuum cleaner, etc). We live in a disposable economy. I don't agree with the trend, but there is no denying it.
As the screen ratio continues to increase, the risk of broken screens of mobile phones is also growing, and it is broken when accidentally. And the price of changing a screen is too expensive, sometimes looking at the price on the repair order, think about it is better to buy a new mobile phone.