Explanation:
The popularity of names, including those starting with the letter "K," can change over time due to various cultural, societal, and personal factors. Trends and preferences in naming can shift with changes in fashion, celebrities, and popular culture. Personal preferences and experiences can also play a role in the popularity of a name. It's also possible that some specific names starting with "K" may have decreased in popularity due to negative associations or negative connotations attached to them. However, the exact reason for the decline in popularity of many "K" names is difficult to determine as it can vary from name to name and region to region.