The quote highlights the innocence and carefree nature of childhood. The boy's laughter signifies a stage of life filled with joy and lightness, untouched by the complexities and burdens that come with adulthood. It reflects the freedom and simplicity of being young, where laughter comes easily and without the weight of responsibilities.

This moment in "Maisie Dobbs" serves to contrast the experiences of childhood with the serious realities of growing up. The author, Jacqueline Winspear, uses this quote to evoke nostalgia and to remind readers of the joys of youth, while subtly hinting at the inevitable passage of time that leads to maturity and its accompanying challenges.