Most of the kids ones do have a higher sugar content than the normal 'adult' yoghurts so i stuck with buying plain jalna etc but now the girls get vaalia and stuff, whatever DP and i buy BUT that said if i had to choose b/w my child being fussy and eating minimal of anything and eating a kids yoghurt then i would give them a kids yoghurt.
I wouldn't give it to them every day but sometimes you have to pick your battles IYKWIM.