The phrase "treats like child" implies the act of being overly protective, coddling, or patronizing. Antonyms for this phrase would include treating someone as an adult, with respect, dignity, and autonomy. Instead of treating someone like a child, one could support, encourage, and empower them to make their own decisions, not talk down to them, and hold them accountable for their own actions. Adults should encourage autonomy, foster independence and offer guidance, while respecting the individual's needs and boundaries. Ultimately, treating someone like a child can be damaging to their self-worth and self-confidence, whereas treating them as a capable and competent adult can build them up and help them grow.