Evidently it's natural for a lot of users. People do get trapped using inferior tech (e.g. Windows as a whole), but nobody is using a touch screen PC out of being forced, and it's not a fad either. The like it; have you tried it? Apple knows ergonomics better than anyone else, but they also know economics.
The touch panel doesn't seem to add significant bulk or cost to the other laptops.
Yes I have tried it and I don’t like it for the reasons already stated. I will add a few more:
1) Not ergonomic due to reaching out to touch a flat surface. A touchpad has greater resolution and better gestures without moving your hands/ arms.
”Straining of the fingers, arms, and legs are particularly alarming for touch screens, since these screens often require the interaction of the arm and shoulder during input, something that is rare with the use of keyboards and computer mice.
Luckily, many issues for the ergonomics of touch screens are not necessarily applicable to many devices with touch screens. For example, phones and tablets are generally used by hand, giving them a controllable axis of operations. By being able to freely move tablets and smart phones during interfacing, users do not apply significant strain to their arms and shoulders. Additionally, these devices are intended to be used for a much shorter period of time than a workstation computer.
Despite this, users can very easily use these devices for a long time, and most touch screens can ultimately be responsible for carpal tunnel and repetitive stress syndrome. However, these problems are much more likely to occur from the use of a touch screen laptop or desktop, in which the user’s finger takes the place of a mouse in moving the cursor. This is because the screen rests parallel to the body of the user, and he or she is forced to perform interface gestures during flexion and extension of the arm, hand, and fingers.
Continuous computer touch screen use can cause “gorilla arm” The shoulder pain that derives from continuous extension of the arm bones to interact with a touch screen has been nicknamed “gorilla arm” and was responsible for killing the first wave of touch computing in the 1980s.
Additional problems with horizontal touchscreens include the difficulties of thick fingers interacting with scroll bars and menus that are designed for much smaller arrow cursors and the grease and moisture on the user’s fingers.”
Read more at the American National Standards Institute (ANSI) Blog: Ergonomic Hazards of Touch Screens
https://blog.ansi.org/?p=7241
2) Cost - on average a touch enabled laptop costs $75-100 more.
3) The digitiser is always on so draws more power resulting in worse battery life. Eg The Thinkpad T460 (non-touch) gets 17hrs battery life vs 13 in touch configuration.
4) The digitiser adds an extra layer that needs to be accounted for leading to thicker devices and greater weights. Eg An XPS13 is 0.2lbs heavier in touch config.
5) Poorer viewing angles due to the glossy nature of most touchscreens.
6) An OS optimised for touch doesn’t work well with mouse and vice versa. It‘s a compromise.
For me, the benefits of a handful of users using them occasionally doesn’t outweigh all the disadvantages. Touch on a laptop is a compromised experience no matter how you look at it.