Acera is a feminine and singular noun that translates into sidewalk ans is a a paved path for pedestrians at the side of a road. We use the definite article <em>la </em>because in Spanish definite articles must agree in both gender and number with the nouns they introduce. Therefore:
IN SPANISH:
<em>Los peatones caminan en </em><em>la acera</em>
IN ENGLISH:
<em>Pedestrians walk on</em><em> the sidewalk</em>
The benefits of communal living is that it helps you to be more compassionate and understanding to people around you. it also divides up common chores so you don’t have as much to do. i imagine the price of living is also less. some disadvantages are that you wouldn’t have as much privacy and you may not get along with those you live with all the time.