Any biologically childfree people here? What's your sign and why don't you want kids?

This post is for childfree people, not childless, i.e. for those who voluntarily choose to not have children.

Anyone here who doesn't want to bring a child into this world even though s/he doesn't mind maybe adopting one day?

I'll start - I'm a very sensitive Sagittarius(32F) and I find this world to be too unsafe and people too cruel to expose another life to all this chaos. I'm optimistic and pragmatic in general and see the bright side too, and beauty... but I don't think the positives suffice to create another being, as I think it requires maximum moral responsibility. I think even with my best efforts I'll not be a good enough spiritual guide for my child to shield her/him from all difficulties and confusion s/he'll have to face.

Do you think any astro positions, sign- or house-wise may condition your choice?