Babies Sleep Better When They Begin Solid Food Early, Study Says. I think it is right to feed baby solid food early.
I did nurse my babies up to 5 years. before 5 years I started solid food for them:)

(CNN) — Both the UK National Health Service and the American Academy of Pediatrics recommend that mothers exclusively breastfeed until about 6 months of age and then begin to introduce solid foods. Yet, an alternative feeding plan is also safe for babies, new research suggests. Introducing a child to solid baby foods after just 3 months was associated with…

via Babies Sleep Better When They Begin Solid Food Early, Study Says — CBS Sacramento