Would you consider it adorable or immature (answer this!)?

..if your girlfriend was 16 and slept in little kid PJ's (hello kitty and powerpuff girls) and had things like ninja turtle and power rangers bed sheets. Also if her whole room was different colors and there were stuffed animals everywhere. Also if she had a painting of a stuffed bear on her wall and another one of a bunch of animated ducks. Also if she likes to make up her own words.