I have a meditation room in my factory for the employees to chant and meditate. How can I make them more interested in Dhamma than the present time?

I have a meditation room in my factory for the employees to chant and meditate. Do you have any method to make them more interested in Dhamma than the present time?

When the monks go for the offering rounds, can they wear a pair of sandals?

I would like to ask about when the monks go for the offering rounds; can they wear a pair of sandals? For nowadays some areas are not suited to walk bare footed.

The 38 Ways to Happiness :- Abstaining from Unwholesomeness (5)

The 38 Ways to Happiness. The Sixth Group of Blessings. Blessing Nineteen :- Abstaining from Unwholesomeness.

America's largest Buddha statue in New Jersey