Make your own choices. The people you meet there are mostly drinkers and smokers in their twenties and early thirties. But if you're looking for someone who doesn't fit that description, you're out of luck. Men often don't like bars because it can be awkward approaching women. Women often don't like bars because they don't like being approached by awkward men.
Bars are often smoky, poorly-lit, too noisy for conversation, and expensive.
In some cases, they can even be dangerous. Avoid awkward situations and one-night stands. Online chat is great as long as it stays online. For many people, the main appeal of online chat is that you can be whoever you want to be. Chatters routinely misrepresent their age, marital status, and even their gender.