DS2 will be 7 injanuary and doesn't seem to have issues with this but he's very confident so probably why.
limit decisi0n amking, or create times when he is relaxed to amke them- eg decide on a Sunday what type of meal he will have all week; and give him lots of tiny decisions to make to help his confidence- ketvchup or mayo, that sort of level.
I am certain it will pass