My little brother is annoying! The woman is the sister or mother of a little boy. Represents family ties. May mean the woman is a single parent.
The family: woman, boy emoji was introduced in 2016 and released as part of the Unicode 11.0 standard. This emoji can be found under the people and body
category. Because the family: woman, boy emoji has been around for quite some time, it should display correctly in the majority of operating systems.