Final answer:
The fallacy used in this argument is bandwagon appeal. The argument claims that social media is here to stay, and people who don't use it are part of an older generation that cannot adapt to technology. However, it does not provide evidence or logical reasoning to support its claim.
Step-by-step explanation:
The fallacy used in this argument is bandwagon appeal. The argument claims that social media is here to stay and that people who complain or don't use it are part of an older generation that cannot adapt to technology. It implies that everyone is using social media and that not using it is equivalent to being left behind. However, this argument does not provide any evidence or logical reasoning to support its claim and instead tries to persuade based on the idea that everyone else is doing it.