The life experience that best connects to the theme in the excerpt is being pressured to dance when you do not want to dance.
In the excerpt, Alice feels a mix of obligation and reluctance as she is pushed by the Red and White Queens to make a speech, highlighting the theme of external pressure to conform to the expectations of others, even when it causes discomfort. This mirrors the situation of feeling pressured to participate in something (like dancing) that one may not want to do.