What was there in the squires letter that suggested his enthusiasm might be ill-founded in Treasure Island?

In "Treasure Island," the squire's letter reveals his excitement about the adventure ahead but also hints at naivety. He expresses confidence in the treasure hunt and the crew, overlooking the dangers that come with such expeditions. His overly optimistic tone suggests a lack of understanding about the treacherous realities of piracy and the complexities of human greed, indicating that his enthusiasm may be misaligned with the perilous journey they are about to undertake.