If it is formal, like a wedding or a political meeting, it’s tux.

Condo dances ect, a suit or sports jacket.

All others casual, shirt and slacks.
I feel you must match/respect what is being worn.

Years back my group had jump suits. Top (Vest) and bottom one piece with a very colorful shirt and a tuxedo jacket (same material) which we removed when we got going.

Question; Nursing homes are fairly new for me, what do you wear at these jobs.

John C.