It's a give and take in small communities.
Yes. It is a privilege to live in a metropolis that has tango studios, teachers, classes, workshops, prácticas, milongas, etc. everywhere – possibly so close that we can walk to them – along with a festival or three.
As I've repeated many times, I have two tango studios – including one that hosts Mundial qualifiers, where one of the teachers has competed in televised all-styles dance contests – less than 10 minutes away on foot. I have two more less than 30 minutes away on foot. I see two coaches weekly. If I wanted group classes in vals, milonga, tango de salón, musicality, or just sacadas, paradas, off-axis, or whatever, I would most likely have several choices . . . and if I did not, I could choose from dozens of instructors to teach me the topic in private. Oh, and despite not having a travel budget, I have a couple of festivals to go to.
When I return to my hometown, there's one studio with a couple of part-time teachers, offering just one all-levels class in seasons when enough students register to open the class at all. There's one práctica and one milonga per month – unless it's canceled. All events happen in shared space that isn't reliably available, in a part of town that isn't close to where anybody much lives. If private coaching happens, I've yet to hear about it.
In the latter location, peer-to-peer sharing and senior dancers informally coaching junior ones is the only way to study without resorting to either online classes that offer no individual coaching, or traveling to take a few classes that won't be followed up because you won't be there later to follow up on. I think that as long as the informal sharing and coaching doesn't happen at the milonga, it's valuable. I draw the line only at dancefloor teaching . . . that's disruptive and in poor taste regardless of community size. Especially for new dancers, it's important to have a safe space to
just dance without having wannabe teachers destroy your confidence by making it clear that you have lots to learn, and it's also important to respect other dancers by not talking over the music, stopping the ronda to give corrections, etc.