Ming from Agents of Speech explains why younger kids pick up speech habits faster but need rewards and play to stay engaged, while older kids understand the why but have harder-to-break patterns. The real answer depends on whether you want speed or deeper buy-in.
Younger children, it's easier to form habits, but it's harder to teach them something, harder to let them understand what the task is about. If you try to teach a child some oral motor or some speech sounds, they won't really get it. They don't understand why they're supposed to do that. Or if you're teaching a board game to a three year old. That's why we have different age limits for different toys because they haven't gotten to the point where they understand that type of games yet. And younger children don't have a lot of language functions. They, they're always thinking, what I'm, am I going to get out of this? What rewards can I get? How is it fun? Needs a lot easier and that's why it's easier to treat. But at the same time, it's very hard to, to make them understand. It's harder for therapists, teachers and parents to teach something that is slightly more advanced. Younger children doesn't mean it's easier, whereas older children, it's much easier to explain how. The problem is that their habits are so well developed and you also have to let them know emotionally why they're supposed to do it.
