1. Many people, rob chains while driving in the bikes, and covering their heads by using the helmets.
2. Young people who are under eighteen, are riding bikes with covering their heads with helmets; which will show that they are above 18; and so, many accidents takes place.
3. The helmets are not comfortable, and they seems to be a burden for the head.
4. Nowadays, the helmets are only manufacturing for poor quality.
5.The horn sounds cannot be heard because of the use of helmets.
Hope this will help you.