Adeline and Liam are both still rear-facing. It is up to 4 times safer to leave your kids rear facing after 1 year. I plan on keeping both kids rear facing as long as they can fit into seats that rear face!
Adeline is in a Roundabout 50 that RF's to 35 lbs. Liam is in a Truefit that RF's to 40 lbs. I may have to swap them to keep Adeline RFing as long as possible.
Both of them are happy and comfortable. Also, there has not been any documented cases of leg/hip injury from extended rear facing!