Children explore the world using all of their senses (including taste!), so your son’s behavior is normal and is something that he will outgrow over time (although some children take longer than others). As a parent, it can be challenging because you constantly have to be on the lookout for potential chocking hazards! When your son goes to put something in his mouth, quickly take it out of his hands (you will need to distract him) and replace it with a safe alternative (like a soother or teether). It may take some time, but with a little patience and redirection he will begin to differentiate between objects that are okay to put in his mouth and those that are not. In the meantime, be sure to keep small objects out of his reach.