hi. my daughter was like this and she wouldn't eat lumps untill around 10/11mths!! but she liked the smooth so i kept giving her that, trying every now and then with the lumps but no! just used to make her heave and not eat anymore. she got used to it in the end but it was more a case of taking food off us rather than eat what she was given so we let her do it that way so really she switched suddenely from smooth to a proper plate of food! the best thing she liked was pasta, i bought the tube type (proper adult pasta) cos they have the hole down the middle and chopped them up but i think she just used to swallow them!! banana's are good for them to play with, he might decide to try it! she wouldn't eat mash though until she was about 1+1/2yrs. some just don't like the feel of lumps, don't think somethings wrong or let others tell you he should be eating them, just keep trying without getting stressed.