Starting solids

You can give him solid even if he needs assistance in sitting. There’s no need for baby to sit unassisted then can give him solid. For my baby I gave her solid when she’s 6 months and she only knows how to sit up unassisted when she’s 8 month old. Hope this website will help solve your query: https://www.cdc.gov/nutrition/infantandtoddlernutrition/foods-and-drinks/when-to-introduce-solid-foods.html