Yes—if the lens focuses to infinity, you can use it like a normal lens for non-macro subjects. The main differences are about depth of field and working distance, not a special “macro setting.”

For macro, photographers often stop down to a smaller aperture (higher f-number) to gain more depth of field, since close focusing gives very shallow depth of field. A tripod is often helpful because smaller apertures require slower shutter speeds or more light.

For street/general photography, use aperture based on the look you want: wider apertures let in more light and can help keep shutter speed up, while smaller apertures give more depth of field. Shutter speed is mainly determined by subject/camera movement and exposure needs, not by distance alone.

One practical issue is focal length: 30mm is fairly short for street on many cameras, so you may need to get physically close. That can affect composition and how people react.

Also, macro lenses are optimized for close focus and often have a flatter field of focus than lenses designed specifically for portrait or street use, but they can still work well for general shooting.