My experience as a camp staffer is if you had boy only and girl only weeks
At my camp if you had girl only weeks we could only offer it one week because though out the summer we get only about 5 girl troop totaling about 40 to 45 girls for the whole summer
where as boy weeks would total about 500 to 600 boys per week
so we run every week co-ed because the number of girls we get each week has such little effect And the effect are so little it doesn’t really change things