The phrase "please and thank you" is often used by some British people as a way to show politeness and courtesy. It is considered good manners to include these expressions when making a request or asking a question, as it indicates respect and gratitude towards the person you are addressing.
In British culture, politeness is highly valued, and using "please" when making a request is seen as a way to soften the tone and make the interaction more pleasant. It shows that you are not demanding or expecting something, but rather asking for a favor or assistance.
Similarly, saying "thank you" after receiving help or a response is a way to acknowledge the other person's efforts and express gratitude for their assistance. It demonstrates appreciation and respect for their time and willingness to assist you.
Using "please" and "thank you" in everyday interactions is a common social norm in British society and is seen as a way to maintain positive and respectful communication with others. It's a simple way to create a polite and friendly atmosphere in conversations, which is considered important in British culture.