Like everything in human existence, languages evolve over time. Words are added or subtracted to reflect changes in a given culture.
New technologies require not only new words, but a new understanding of what those words refer to. So do new trends or customs within a culture.
All societies ebb and flow. Years go by when little changes. Afterwards, there can be a burst of energy created by inventions, fashions or ideas.
Some people are quicker to adopt these changes than others. Historically, change is equated with youth. Young people are generally more willing to try new things and to take risks — or so the thinking goes.
In reality, adopting new ideas has more to do with personality than age, race, ethnicity or gender. Adopting new trends may have different roots.