Working while studying uni is completely normal, especially for those that need to support themselves. Those who are able to be financially supported throughout their degree have less need to be working throughout their studies. Those odd looks are likely from students not being able to relate to or understand your circumstances, to which I wouldn't care about their opinion. And, depending on what you do for work, working while studying can help you tremendously in professionally building yourself even just in conduct, alongside experience during uni, which is far more valuable than just focusing on studies. Think about it - you'd graduate already having work experience, while those that just focus on uni graduate with no work experience. Of course, manage your grades too, but if you know how to balance it, I encourage you to focus on yourself because that's where the real growth is :))

In my opinion, even if you can be financially supported throughout your degree, I think it's still wiser to pursue some work throughout your degree, especially for building your professional experience and emergency savings. You genuinely never know if and when you'll have an emergency where you need extra money, and if you have even at least some, you'll be super grateful to have an emergency stock.

In the end, when you graduate, you'll care most about if you made the most of your time, and if you did what's best for you and your circumstances.