If you are in your thirties, there is a good chance a keyboard is already in a corner of your home. Bought during a lockdown, or for a child, or after watching someone play Someone Like You and thinking: I could do that. Then work and family filled every hour, and the keyboard became furniture.
The problem was not your talent and it was not your age. It was that nobody told you what to do with the little time you had.
Twenty minutes is a real session
Adults often treat a short session as a failed long one. It is not. The hand consolidates what it learned between sessions, so six short days do far more than one long Sunday. Twenty focused minutes, most days, is a complete practice routine.
What to do with them
Five minutes: something you already play. Slowly, listening to the sound. This warms the hands and reminds you that you can play.
Ten minutes: the smallest broken spot. Not the whole piece. The two bars that go wrong. Play them slowly, hands separately if needed, until they go right three times in a row. Then stop.
Five minutes: something for joy. A melody by ear, a piece from your childhood, anything you enjoy. You should always leave the instrument wanting to come back.
Practicing in a shared home
Headphones on a digital piano solve most of it. A weighted 88-key instrument matters more than the brand. And there is a quiet benefit to playing where your family can hear you: children who see a parent practicing understand that learning is something adults do too.
The guilt about taking time for yourself
Many people in their thirties tell me they feel selfish spending twenty minutes on the piano. I would put it differently. Twenty minutes in which you are not answering anyone, not solving anyone's problem, is what lets you be patient with everyone else for the rest of the day.
If you want a list of what to aim for, the page for adults in their 30s has the songs people your age most often want to play, from A Thousand Miles to Merry-Go-Round of Life.
For the songs, the obstacles and a plan for your first three months, see piano lessons for adults in their 30s.