Culture - Costa Rican Family Structure

After staying with a Costa Rican family, I observed some similarities and differences between Costa Rican family structure and my own experience in the US. Every family is different and generalizing my family experience to an entire culture probably would not be entirely accurate.
Some observations were that my family seemed to pride themselves in keeping everything sparkling clean all the time. This resulted in my host mom constantly cleaning. She was not a stay-at-home mom, however. There was not a father figure in my host family, and my host mom was an English teacher.
The main difference was that the kids lived at home, even though they had graduated from college. At home in the US, this is seen as an unfortunate circumstance. If you really have no other options, you might still live with your parents, but here it is completely normal to live at home. In fact, it is actually abnormal to live somewhere else.
The kids were expected to help with the chores like cooking and cleaning, but they needed constant prompting from my host mom, which, I must admit, is very similar to how my family in the US functions.
For the most part, things felt very similar to how they are at home in the US. There was a level of familiarty between the family members, but not so much that it bordered on disrespect. Because the kids in my host family were older (18, 20 and 22) they were very independent, and this was supported by their mom. This is very similar, at least in my family back in the US.