Most of the show scene is built for adults
Vegas's core show economy — nightclub-adjacent production numbers, adult comedy, late showtimes — is generally not aimed at families, and it's worth checking a specific show's content and age guidance before booking rather than assuming.
Where the family-friendly options are
Circus-style productions built around acrobatics and visual spectacle rather than adult content are typically the safest bet for a family audience, and some venues specifically run earlier, family-oriented showtimes distinct from a later adult version.
Check age guidance directly
Age recommendations and content warnings vary by show and can change — check the specific show's own guidance when you book rather than relying on general assumptions about a genre.