Cities change New Year's Eve parties. This year, parties are small. Some cities stop big events. Paris, Tokyo, and Belgrade stop big parties. This is because of safety worries. These worries grow every year.
Bad things happened at parties before. Cars hit people. A bomb exploded in Nashville. These show that bad things can happen. It is hard to keep big crowds safe.
New York City still has its ball drop. But there will be many police. The city plans for safety. Safety is very important now.
People also celebrate in new ways. They like small, private parties. They do not like big public parties. People want to be safe.
The world celebrates the new year differently. It is fun, but also safe. We learn from the past. Smaller parties show safety is important. People want to celebrate and be safe.