There are advantages to playing at both traditional brick and mortar casinos and online casinos. Some players prefer the traditional casino, some prefer online casinos and some players see the advantages of each. If all of your experience is with online casinos then you need to know what differences you will see when you visit a land based casino.
The first and most obvious difference is that there will be live people for you to interact with. This is a stark contrast to the online casino where you do not need to have any contact with other people. It used to be that casinos had dress codes and a code of conduct that needed to be followed. These days people can wear whatever they please and the code of conduct is almost completely gone. Most casinos have either non-smoking or smoking sections. There may also be non-smoking tables within sections. The tables at poker tournaments are generally non-smoking tables, but you can stand up and smoke next to the table. Players are allowed to be loud but not unruly. Offensive behavior is not tolerated and players who behave badly will be first asked to leave and then escorted out if necessary.
Online casinos are more convenient than land based casinos. If you are used to online casinos live casinos will seem a bit inconvenient. Switching games or tables is not instantaneous. A player must get up, pick up his chips and physically move to the next table. A seat at the game of your choice may not be available at peak hours. cannot play at whatever limit that you want and you will often have to wait for other players. You will receive free drinks while playing in a live casino. Waitresses come around and ask if anyone wants a drink. That do not specify alcohol, but it is available if you ask. The problem is if you want to switch tables while they are getting you your drink. Do you just walk away or do you wait for the woman to return with your drink?
When you enter a traditional casino you can feel the excitement in the air. Some people feel that this excitement is part of the experience of casino gambling. It is fun to be in a room with people who are winning. There is no other experience like a craps table when it is hot. The players are a group of complete strangers defeating a common opponent. When you play online at home, you do not really get the full casino experience. It is more cerebral. You can win and you can get excited about it, but there will probably not be a crowd of people standing behind you cheering you on. Players cannot get this kind of experience online.
In general it is just you against the dealer In most online casino games. In a live casino, you are at the table with other players and you are all playing against the dealer. There is an advantage in blackjack where seeing the other players cards will give you clues as to which cards are still left in the deck.