I disagree that replacing plastic without a decent understanding of a replacement is any more naive than continuing to use plastic without a decent understanding of the implications of plastic. Glass for one has been used for at least an order of magnitude longer than plastic has, without the mentioned issues of microscopic sharp fragments, dissolution in water, evaporation etc. causing harm. It seems clear to say that going back to glass and ceramics would be - on the balance of probabilities - likely safer, as they don't cause bioaccumulation to anywhere near the same extent, and history hasn't shown any comparable dangers which persist today.