For singles, do you invite your family to your place?

I am in my early 30s, single. And do t have children. I live in a small apartment.

I go to my parents' place for special occasions, and I go to my sister's once a week. I have been living in my current place for a year and have never had my sister's family over for dinner. They have come a couple of times, but just for a drink. My sister has two young children. Whenever I go to my family for dinner I bring either a box of chocolates, flowers, or a small chocolate bar for each of the kids.

Is it rude that I have never invited my sister over for dinner, even though I go to hers once a week?

I sometimes invite friends over for a meal, only one at a time, and I have no issues with this, however, when it comes to my sister and her family I feel differently, because of the kids. I feel that my apartment is not child friendly, and is too small.

Do you invite your family around to your place even though you are single yourself?