Takei's message may also be helpful to parents. It's impossible to read everything your kids read, and the subtler dangers are easy to miss.
It's definitely a good message for parents as well - especially since I have an almost 9 year old daughter.
Another post of Takei's from his almost always funny Facebook page had a picture of Emma Watson/Hermione Granger and another of Kristen Stewart/Bella... the caption for Hermione is: When the love of Hermione's life left her, she continued to search for the keys to destroy the world's most powerful dark wizard. The caption for Bella is: When the love of Bella's life left her, she curled up into a fetal position, went numb for months and then jumped off a cliff."