Can Nikon d1.8g-50 be used for travel photography?

I don’t think it is very suitable. Fixed-focus lenses often encounter situations where the field of view is insufficient. Although you can make up for it by moving around and changing positions, it will be very inconvenient.

For large scenes, it is better to use the wide-angle end, as the visual conflict is stronger

It is better to use a zoom lens for travel photography