No. That is the whole answer, but since it is the single most common reason adults never start, it deserves the long version: how learning partner dance without a partner actually works, and why it is often the faster way in.
How lessons work when you come alone
In a private lesson your teacher is your partner, full stop. You learn to lead or follow with someone who does it expertly, which means every signal you give is understood and every habit is corrected the moment it appears. Learning with another beginner means two people guessing at each other; learning with a teacher means the dance answers back correctly every time.
But will I ever dance with real people?
Yes, and sooner than you think. Social dance floors are built for strangers: salsa nights, milongas and swing socials all run on partner rotation, where arriving solo is the norm. Your lessons prepare you for exactly that, and the studio's own social parties make a gentle first floor among familiar faces.
The quiet advantage of starting solo
Couples bring each other's nerves into the room; solo students bring only their own, and shed them faster. Solo learners also progress at exactly their own pace with no negotiating. Plenty of our students who started alone say it was the best accident of the whole thing; there is a full page on dance classes for singles.
And if you do have a partner
Wonderful: couples lessons are their own pleasure. The point is simply that a partner is an option, not a ticket. Nobody is turned away from dancing for arriving as one person.