For anyone unfamiliar, a quinceañera is a traditional Latin American celebration marking a girl’s 15th birthday and her transition into young adulthood — typically a lavish affair with a formal dress, a ceremony, and a large party. This particular guest of honor was, notably, a dog. The photos of the celebration went viral, and the internet responded with the appropriate mix of delight and gentle bewilderment.

Fifteen years old, a coming-of-age ceremony, and a party dress. Somewhere a teenager who got a store-bought cake and a card is watching this dog’s quinceañera photos and reassessing their entire family situation.

The math, admittedly, is a little generous. Fifteen dog years is well past coming-of-age and comfortably into distinguished-senior-citizen territory. But the spirit of the thing — celebrating a beloved family member who has stuck around for a decade and a half — is hard to argue with.

Reaching 15 is a genuine milestone for a dog, and many owners mark senior birthdays precisely because they know how precious the extra years are. If that celebration happens to come with a tiara and a themed party, so much the better.

By all accounts, the birthday girl handled her big day with grace — which is to say she almost certainly slept through most of it and woke up for the cake.