Final answer:
Katherine initially does not want to kiss PetrucHIO in the middle of the public streets because of social norms and her desire to uphold her reputation.
Step-by-step explanation:
Katherine initially does not want to kiss PetrucHIO in the middle of the public streets because she is concerned about her reputation and the social norms of the time. Kissing in public was considered improper and could damage a woman's reputation. She wants to uphold the respectable image of herself and her family. Additionally, Katherine may also feel uncomfortable with public displays of affection or simply prefer to keep her romantic moments private.