Leading coworkers twice your age isn’t about acting older. It’s about being the most prepared person on shift.

Borrowing authority through manner tends to read as performance, and people with decades behind them recognise it instantly. What they respond to is preparation, because being ready makes their shift easier, and that is an immediate and real benefit. Age is not the obstacle it looks like. Being underprepared in front of people who know better is.

Do the reading before the shift and know the answers to the three questions you will certainly be asked. Say plainly when you do not know something, then go and find out. Ask the experienced person how they would handle it and actually use the answer.