The legal context.
Why indoorTexas does not have a statewide indoor smoking ban in bars. State law restricts smoking in a narrow set of facilities under Texas Penal Code section 48.01, and most categories of bar and restaurant are not covered. Where municipalities have stepped in with their own ordinances, age-restricted tobacco-specialty establishments are the conventional exemption: a venue that limits entry to 21-and-up and whose primary business is tobacco service can permit indoor cigar smoking where general bars cannot.
In practice, that means a cigar bar in Texas works by sitting in the tobacco-specialty category, posting age-restricted signage, checking ID at the door, and dedicating a room to the lounge program. West End Elixir Co. operates that way. The cigar lounge is the room at the back of the bar with the walk-in humidor and the lockers along the wall. The age requirement is 21 in Texas for any tobacco product, the same 21 the rest of the country runs on since the federal Tobacco 21 law took effect in 2019.
If you are coming from a state with a comprehensive indoor ban, the experience is going to feel unfamiliar. You can light a cigar inside, sit down with a whiskey, and stay for a session. That is how it works here.