Kids books

So I’m cleaning my 8 year old sons bedroom right now and I just put all of his young age books into a bin. These consist of all his favs from the Barenstein bears, Richard scary, elephant and piggy, Robert Munsch etc. I feel so sad putting them away but there is literally no room in his bedroom for them now, and he’s already reading chapter books so there really is no need to keep them in here. It just makes me so sad to think that we are done reading those books and that he is growing up so fast 😩 anyone struggle with their child growing up too fast?