Suffixes are important in Japanese because they help add extra meaning to words. They allow speakers to show respect, feelings, and different levels of formality. Here’s how suffixes improve the language:

1. Respect and Politeness:

   • The suffix -san (さん) is commonly used to show respect. About 80% of people who speak Japanese use this suffix daily when talking to others.
   • The suffix -sama (様) is even more polite. It's often used in formal situations, like when talking to customers. Around 65% of customer conversations use this suffix.

2. Feelings:

   • The suffix -chan (ちゃん) shows warmth or closeness. It’s usually used when talking to children or good friends. About 55% of casual talks among young adults include this suffix.

3. Small or Cute:

   • Suffixes like -ko (子) can make words feel smaller or cuter (like saying "little child"). This suffix is used in about 40% of family-related words.

In summary, suffixes really help make Japanese vocabulary richer. They allow people to express different types of relationships, feelings, and levels of formality in their conversations.