Simplify the following text for a Grade 9 native English-speaking person.
Original: The first mosques had no minarets , and even nowadays the most conservative Islamic movements , like Wahhabis , avoid building minarets , seeing them as ostentatious and hazardous in case of collapse .
Simplified: The first mosques had no minarets . The most conservative Islamic groups , like Wahhabis , still avoid building minarets .