It's important to understand that people's reactions to the use of a specific name can vary based on cultural norms, personal preferences, and the context in which the name is used. In the case of Catherine, Duchess of Cambridge, her name preference, and how she is addressed by others is a matter of personal choice.
When discussing public figures or individuals of prominence, some people prefer to use their full name or the name they are formally known by in official settings. In this context, Catherine is her given name and the name she uses for official and formal occasions.
On the other hand, "Kate" is a well-known nickname for Catherine, and she is often referred to as such informally, including by close family members, friends, and even in the media. This informal usage is seen as more relatable and friendly, and it is not inherently disrespectful.
It's essential to consider the context and the individual's preferences when using their name. In official or formal settings, using their full name (in this case, Catherine) might be more appropriate, while in informal or personal settings, using their preferred nickname (Kate) might be acceptable.
Ultimately, different people may have varying opinions on the matter, and it's essential to be respectful of the individual's preferences while acknowledging the various ways they may be addressed based on the context. The most important thing is to use names in a way that shows consideration and respect for the individual's wishes and cultural norms.