I meditate every day and it's cost me nothing, uses nothing, does not require going anywhere, literally brushing my teeth is more of a commercial activity than meditation is.
Meditation is exactly what your students could use most effectively to learn to manage distracted minds, so given you are in a position of mentorship it's kind of sad you seem to think the basic act of sitting and doing exactly nothing but observing how it feels is some kind of corporate fad that should be avoided.