When did you start with solids?

My baby is currently 3 months old. My pediatrician told me we should start with solids after the 4th month. I asked a friend and she told me no way she is starting that early, she will start at around 6 months.

I know the baby should show some signs that the baby is ready, I read about it.

How was it with you? When did you start and how did you decide on the time?

EDIT: Thanks everyone for all the comments! It was really helpful. I loved all the cute stories about your LOs.

I will just watch for signals when he is ready and won't rush into anything. ☺️