Ok I know we've moved on from the original topic but saw some mentioning about stroller deaths and other similar things. This is about car seats...injuries sustained NOT involving a car accident, but kids left unattended or other things similar while in a car seat.
https://www.caritasholyfamily.org/NewsLetters.asp?PageID=P09861
Yet of course car seats are great things and needed, but you need to use common sense....same with slings/carriers
I've never come near to an accident with a carrier but I did have a very near miss with the pram when someone kindly went to help me down stairs and slipped, tipping the pram over and my LO nearly went straight up and out of the waist straps. This is one of the reasons I get so annoyed at people (usually random strangers) nagging me about the safety of the sling.