Why don't civil aviation planes have panoramic skylights?

Because the plane enters the atmosphere after taking off, the air pressure will decrease, and the pressure difference borne by people will increase. If the skylight is opened, the passengers on the plane can't bear it. If imported glass is introduced, it is too expensive and unnecessary, and generally nothing can be seen.

About panoramic sunroof:

Generally speaking, the panoramic skylight has a large area from the beginning, even the all-glass roof, and you can see the above scene at a glance when you sit in the car; At present, many panoramic skylights are two separate pieces of glass, which make the front and rear seats feel like skylights respectively.