Carrying a backpack to work or to an interview isn't unprofessional. It can be seen as a sign of readiness and efficiency. However, it's important to choose a backpack that's right for the workplace or interview environment. A backpack that is too large or bulky can distract attention and make it difficult to move.
When I was interviewed for my current job, I had my biggest things in my backpack and I felt a little silly carrying a backpack with a suit, but luckily I was offered to leave the backpack at the secretary's office for the day, and I had everything I really needed in a small leather bag. These types of tasks usually require you to carry a laptop or notebook with you, and a backpack can be a practical option. If your backpack is worn, stained, or broken, it might not make the best impression on your potential employer. If you need to bring your laptop or other devices to the interview, consider investing in a professional laptop bag or briefcase.
Remember to consider the condition of your suitcase, and if you need to bring a laptop or other devices, invest in a professional laptop bag or briefcase. If you're going to be interviewed for a government position, it's best to avoid carrying a backpack to the interview. I think I would have been uncomfortable carrying the backpack with me all day (even though it was of good quality and quite new), especially since the other candidates dressed very stylishly and didn't have backpacks.
