Happy Doomsday

This book barely rated 2 stars with me. The science is entirely unbelievable. Some mysterious force instantly kills every human on the entire planet - except for teenagers who are actively considering suicide? I guess it's easy for the author from that point. He doesn't have to come up with any rational reason since the only survivors are too immature and self involved to do any sort of scientific research. At the end of the book, we're left with 2 young adults raising a child - and their plan is to lie to her about everything??! Frankly, all the teenagers were despicable and made stupid decisions. Was this a statement of what the author thinks about adolescents - or just the suicidal ones?