Ezra is still four years old and managed to ride on his own (mostly, he still needs help starting and stopping).
He was so excited to hear that he achieved this accomplishment at a younger age than his sister.
At school every day someone has to present ‘what they want to do’ when they grow up. Supposedly one of the kids were sick yesterday and the teachers asked if anyone wanted to present.
Ezra lifted his hand and volunteered and he told the class that he managed to bike all by himself the day before! One of his classmates (Adriana?) said she saw him. Perhaps she was driving by in the back of the car. He must be quite proud to volunteer to get up in front of the class to talk about something.