Wiktionary
all ages
a. (context chiefly US English) open to people of all ages, particularly to children under the age of 18 (qualifier: of an entertainment event, particularly music or dance)
Wikipedia
All Ages
All Ages is a compilation album by the American punk rock band Bad Religion. It was released on November 7, 1995 through Epitaph Records. The compilation contains songs from How Could Hell Be Any Worse? to Generator, and two live tracks recorded during their 1994 European tour, which were the first tracks to feature guitarist Brian Baker.
Usage examples of "all ages".
Young mothers and nannies supervised shrieking children of all ages as they dashed about, skipping and jumping, rolling in the grass.