full cream milk vs formula milk

I gave my son marigold full cream milk when he turns 1 and is about to go infant care. Before that was exclusively breast milk. He never had formula milk before. As long as he has a balanced diet, he dont need the extra supplement from formula milk. If you’re worried about the lack of DhA, can feed him fish oil for kids after 1yo, or let him eat more fish. It all depends on you & your husband on what you think is best for your child.