Why are Colombian women so hospitable?

My boyfriend invited me over to his grandparents' home to celebrate his birthday, and I was pleasantly surprised with how welcoming his relatives were! They prepared a large celebration, which was attended by all his family members and close friends. The food tasted great and his grandmother, aunts, and cousins complimented me and were really friendly too. Why are Colombian women so hospitable and warm? I never expected them to accept and actually like me, so this is foreign territory for me.