Is it strange to go out with this backpack?

No, it's beautiful. It is quite in line with the backs of young people and student parties, but it is not good to be hollowed out. You can see everything in the bag, even if you put a menstrual towel on it. It's embarrassing, and there's no privacy. More expensive items still can't be put in the bag, for fear of attracting thieves to steal. It is recommended to meet the back! Not very practical. Play with your back, put some food and a bottle of water.