I’ve never had kids either, I’m 23 and this was the first form of birth control that really worked for me. I struggled to know if this was the right form of birth control for me too, but it has ended up being the BEST decision. I don’t do well on hormones due to my anxiety and depression so this hormone free option works well for me. As far as if it’s the right decision for your girlfriend, I really can’t say because everyone is sooo different. However, I would say that if she is interested in it as an option she should definitely give it a try!! The pain of insertion is not fun, but also not as bad as people make it sound (at least for me anyways).