I have co slept for the good part of 17 years. 5 kids and one still currently co sleeping. Every one of my children are fine because we follow the guidelines on how to co sleep safely. Actually, just last night I had 3 out of 5 of my kids in my bed with me.
I just wish people would stop telling us how dangerous normal, natural practices are such as home birthing, baby wearing and co sleeping and instead put out how to do them all safely!