Almost anyone can do it, few people excepted. But some will write a grocery list or make notes at school. Another will write a newspaper or a book with the same words. Only very few will ever write a beautiful novel or a bestseller.
Web sites are very much the same.
Making a web page is as easy as pie. Making a good web site is a genuine art. Creating a web site is not an easy task. It requires a lot of knowledge about many different areas of interest. Not everyone will be able to do it.