I tend to go with my instinct - people have been doing that for thousands of years without studies.

It has worked with her sleep - so I did the same regarding feeding.

So, I started feeding solids at 4.5 months because she was VERY interested in what we were eating. She would stop crying when she saw us chewing, for instance PLUS she was getting increasingly bored with bottles.

As far as I'm concerned that was taking a baby-led approach and I'm a big believer in letting your baby guide you. As I said before, 100 years ago we would have just gone with our instinct and I would have started feeding her solids at that time without feeling confused by often-changing guidelines on what's the right or wrong time.