When I made my ADRs, I made them for a party of 5. Kids 8,5,2. I requested a highchair. Now I am thinking no way will the little guy sit in a highchair -- he'll turn 3 during our trip. Do I need to reschedule? It is still the same 5 people.
I don't think it'll matter - since the reservation is for 5 people. If the restaurant has it marked for a high chair, you can just tell them you don't need one.
When you check in, just let the host/hostess know that you won't need the hi chair. They will take care of it for you. Don't change your ADR's since the number of people isn't changing.
No, they won't. There was another thread about how a high chair needs to be counted as a person. So you had five people then, five people now. You are fine. Just frees up a high chair for someone else.