My husband and I are childfree by choice.
I wouldn't say we are happier than couples with kids, and I can guarantee you they think we are miserable ~ which is also not true. It is just a choice we made. We don't "hate" kids. I love kids, actually, and my passion is bringing quality to the childcare world through natural playgrounds and through my new business I am starting. I can't do both,though. I can't give myself to kids all day and raise a family. Well, let me re-phrase that; I CAN do both, but I am choosing not to do both.
Our family is fine with it. They know how we feel. We just don't want to experience that aspect of life. You don't *have to* experience "having kids." THose with kids have no clue how we can choose such a thing, and that is fine. As long as they don't judge us, we won't judge them for their reasons for having kids. It's personal choice.
Having a child should be a personal choice. Only you can decide what is right for you.
I think a lot of people who don't want kids just want someone to tell them it is OKAY. So, I will say it... is is OKAY to choose to not have kids.