Why do the adults talk like children in the new Subway commercial?

They talk like children in this commercial because it attracts the viewers attention. Reports show that commercials with animals or children *talking babies, kids voices, or young kids in general, are likely to be watched. People change the channel if a commercial is dull, but if it is catchy, cute, or funny, people will watch the commercial and purchase the product being advertised. Its all on advertising techniques