Google defines the term ‘manners’ to be “a person’s outward bearing or way of behaving towards others.”

One’s manners reflect their social behaviour thus.
Manners matter because it conveys the respect one has towards their social environment and the people in it.

In the civilized society we all are in today, manners are extremely important in presenting an impeccable image of ourselves.
Keeping in mind the significance of manners, they are seen to be inculcated right from childhood.
Basic manners such as saying the ‘magic words’ like please and thank you and apologizing upon doing a mistake, and being polite are taught.

Table manners, and knocking on doors before entering are also important to maintain decency in public spaces.
Covering one’s nose and mouth while sneezing or coughing (which became all the more important during Covid-19!) is also an important manner.
These later transform into etiquettes to be followed in life.