I believe they can be ‘happy’, but they’ll eventually regret it if they finally grow up to be an adult and realize that our children are the only real legacy we leave behind.
The childless will die and within a short time, nobody will remember them or anything about their ‘happy life’.
I’m also skeptical of anyone who feels the need to write a book or article about how happy they are. Sounds to me like she’s trying too hard to convince herself that she’s happy.
Why do we need to leave a "legacy"?