It's safe place, where you may find help in case you need it. But it's better to avoid some crowd places, when someone may ask you for money (because it's quite often tells lie). It's better not to go for a walk at night alone.

Rostov is pretty safe in daylight, and in the dark I guess too, but it is better to have a pepper spray in case of emergency. And I wouldn’t recommend you clubbing alone. Clubbing here is not popular and you can find only shady men

A fairly safe city, except for the conflict between Russia and Ukraine Because of the political conflict, drones fly in the city and sometimes they blow up houses, but explosions happen rarely Also, because of the conflict, mobile Internet is often disconnected