Visitors should dress neatly in all religious shrines and temples. (follow the tradition of...)
→ Visitors should follow the tradition of dressing neatly in all religious shrines and temples.
People shouldn't enter temples and pagodas in shorts or sleeveless shirts. (break with tradition by...)
→ People should not break with tradition by entering temples and pagodas in shorts or sleeveless shirts.
Shoes should be removed when people enter a private home as a sign of respect. (There's a custom of ...)
→ There's a custom of removing shoes when people enter a private home as a sign of respect.
We usually visit our old teachers on Teacher's Day. (have the custom of ...)
→ We have the custom of visiting our old teachers on Teacher's Day.