My kid has no other developmental issues, he's just plain picky. I, too, tried to force the issue once (feeling the pressure from family and others) and it led to him gagging and crying and me yelling... it wasn't a good look for either of us. I'm much more relaxed about it now and he's becoming a lot more open to trying other things (or new versions of the same things, like different brands of chicken nuggets, different varieties of cheese pizza, etc...). His younger sister is becoming a bit pickier though, it's making me irritable these days.