It is quite acceptable for men to go to bars and clubs alone, but this is not true for women. Women tend to only go to these places with a group. Many of them travel in large packs, and they spend hours getting ready. Their night out begins with a trip to the salon. They get their nails and hair done, then go home to get dressed and do make up. It is not uncommon for women to help each other choose an outfit, and they often try several outfits and choose the best.
Women going out for a night on the town are looking for a great time together. Their goal is to make memories as a group, and they also want to meet men. Many bars and clubs see this as an opportunity to attract a large crowd, so they have ladies nights. The women flock to these evening events because they know men will be there in force. It is a way to have a fun night out with friends and meet a possible future date.