I looking at the relation between years of education and vaccine skepticism across countries. I want to label just one country, France. But am unable to. I tried labeling all countries on the graph and even that fails. The Country variable is a string variable. I'm not sure what's going on here.

Code:
reg Safety School_Years

gen country1 = "France" if Country=="France"
scatter Safety School_Years || lfit Safety School_Years, mlabel(country1) legend(off) ytitle("% not agreeing that vaccines are safe")

*Labelling all countries - also failing
scatter Safety School_Years || lfit Safety School_Years, mlabel(Country) legend(off) ytitle("% not agreeing that vaccines are safe")