Rear facing car seat

They advise to be in as long as possible. I had to put my daughter forward facing far to early as she is really tall and her knees were squashed against her.

Yeh I know they advise that but what age is the law. I always thought it was at least 2 years but today I had people telling me it’s from 15 months and that my LO doesn’t have to be rear facing now as I had mentioned I had ordered an extended rear facing seat 😕

Our legal age is 15 months 2 is advised and 4 or longer is preferable