14th mth old doesn't like any other milk apart from formula. Have tried him on goat's milk (for his eczema) and whole fat milk but he won't drink them. Only likes Aptamil. Know he has to have at least a pint of milk a day. What can i do to encourage him to move from formula to normal milk be it goat's or whole fat ? Is it ok to mix formula with some goat's milk or whole milk so that the formula is slowly diluted ?