A player should never commit if he is unsure of what he wants to do, regardless of how large or small the offer is. And a player should never commit because he is afraid that he won't be given time to wait ornot have another opportunity given to him.
A player has the option of thanking the coaches and telling them he is very interested but not ready to commit. The coaches know a recruit is gonna shop around, so are they, that's the chance you take. If a coach is really interested in what a recruit has to offer and realizes it may be too soon he'll allow him the opportunity to wait until the spring or fall.
There are at least a half dozen parents of players on this site that were offered early but decided to wait until they were ready. Things worked out well. There are many other parents of players here who have not committed until the spring or summer before college begins and it worked out well for them.
Like I've sad before, never commit out of fear, or because you think everyone else is doing it, or unless you have done your homework. It will be a mistake one will regret.