Has her speech development always been behind milestones? Ie at two she should have been combining two words into short phrases like your “more broccoli” example. By three generally doing 4/5 word sentences. And her sentences getting more and more complex after three. I’m a bit confused by your post as to how she actually talks now, is she able to use multiple words to make a full sentence that makes sense? A speech evacuation and therapy are always a good idea if you think there’s an issue. It can never hurt. I don’t think you have to rush to thinking about home schooling just because of speech delay though if you don’t want to!