The problem is that manufacturers realise that an increasing number (possibly 75 / 80%) of their customers have grown up being tech-savvy i.e. They know how things work. Many gadgets, especially phones, work intuitively (to them) and so manuals aren't needed. Also with the internet being so easily accessible if a customer does become stuck, there are many options for finding the answer (on line manuals, forums, you tube etc). I'm afraid it's a generational thing.