@Peppery123 I started at 5 months exactly. Just on a couple of spoons of baby porridge at a time. She was ok. She loves picking up and chomping on cucumber too. Obvs doesn't eat any, just gums it. So she's "ready" in the sense she can pick up and try to chew food.
We have tried veg purées over the past ten days. Just sweet potato and butternut squash. Omg, she can't get enough. My baby who I just didn't think was hungry as she's never drunk milk properly is like a thing possessed. As soon as she swallows it she's searching for the spoon again.
She's seen a paediatrician a few times as we suspected silent reflux. She's on gaviscon since ten weeks. The symptoms of acid reflux (the face pulling like she was in pain when spitting up hours after feeds etc) disappeared but she still didn't increase milk intake and hasn't done since (she's drank the same amount of milk done 3 weeks old).
Anyway, the doctor isn't greatly concerned as she was born on 9th centile but went up to 30th by ten weeks and has somehow stayed hovering round that. She doubled her birthweight (5lb 13oz) by 12 weeks 
He just said some babies drink very little milk and prefer food and to give it a go when I felt comfortable (she was 4 months then, I waited another month). I trust him implicitly- he's seen all my children over 18 years, we use him rather than a GP.
But I just know she will drop the milk intake even more with more food. It's such a worry.