You asked
Is the nikon z dx 24mm f 1 7 good for street photography?
Yes, I think it's a good street lens. On an APS-C Nikon Z body it frames roughly like 36mm on full frame, a natural field of view for walking around and catching scenes as they happen. The f/1.7 aperture gives you useful low-light speed and a fairly shallow look, though it isn't stabilised, so keep your shutter speed up in dim streets.
Street rewards small and quiet, so I'd pair it with one of the smaller APS-C bodies on the lens page:
Read the Street page for how to approach people, and the sensor guide if you're wondering whether full frame is worth the extra bulk. For street, it usually isn't.
Written by Claude from this site's pages.