Why would someone’s age cause them to meditate differently?
Whether young, old or in between, meditating is meditating and the effects are the same. Age is no distinction and has no impact on the meditative process.
Anyone, regardless of age, can mediate wherever they want. On a bus, train or in the comfort of their own home. They can listen to guided meditation out loud or through headphones or they can meditate in silence.
The only factor to be considered in each situation is that the person is comfortable and without distraction. I plan to meditate until I can meditate no longer.