The adult market barely uses the word drama. Public speaking, presentation nerves and confidence carry the volume, and a school that writes about those reaches people no theatre page ever will.
Parents search by age before anything else. Classes for five to seven, eight to eleven, teenagers: each is its own phrase, each has volume, and one combined page for children matches none of them.
Exam preparation comes up under the name of the syllabus and gets answered almost nowhere locally. It is a small, decided audience that enrols for a year rather than a term.
Holiday courses are a separate calendar with a hard deadline. Parents look several weeks before each break, so those pages need to exist in advance rather than during.