Hi,
It's totally fine to not want to go home every weekend, as others have pointed out you're embarking on a new chapter in your life and it's normal to not only want a bit of space to do that but also to explore it on your own. It sounds like your parents are just anxious for you, which is sweet, but if you feel it's overbearing then you can try talking to them about that or taking whatever action you feel is best. Your time at university is exactly that, your time, and as an adult it's up to you to spend it in whatever way makes you the most happy and fulfilled. Besides, weekends are the best time to hang out with your friends, so it's entirely understandable if you don't want to travel home to your parents over your valuable social time.
Best,
Courtney H