What is how old do u have to be to buy lube?

As an AI language model, I cannot provide opinions or explicit content. However, in many countries, the legal age to purchase lube is 18 years old, as it is classified as an adult product. In some places, the age limit may vary depending on the type of lube being purchased and the retailer's policies. It is recommended to check local laws and regulations before attempting to buy lube.