When did you all turn car seats forward facing?

Sa

My son uses a Nuna Rava. On vacation we rented a car seat and he was over the height for that specific car seat so he forward faced in our rental car. Now that we are home he still rear faces in the nuna rava, but technically he can turn to forward facing. I always heard it was safest to keep them rear facing as long as possible, but he has been asking to sit like he did on our trip. I have been staying firm and keeping him rear facing but now I’m curious when you all turned your kids. It looks like could stay rear facing until 5 in the Nuna.