The baby should have proper understanding of the language that's why the parents support language development.
Explanation:
The case that has been mentioned in the question ,here the parents has been having different mother tongue.The father Andrew is having English as his mother tongue and the mother Paola is having Portuguese as the mother tongue . Therefore the parents want that their child Maria should have proper language development that is the daughter should respect different languages and should have the ability to understand the language. These will also help Maria to develop proper characteristics.
