KodoCha can be watched by children, but some things may be unsuitable. The word "pimp" is used frequently. There is also a disturbing scene involving bullying of other kids in school.

KodoCha Anime did a fine job in translating, especially where Sana rambles (sings? raps?) a lot of nonsense. Because the story takes place in contemporary Japan, a lot of gags involve the Japanese culture. Translation notes are informative, so don't fastforward through those parts!