Our entire choir is 12 people - 3 for each part. Yet, we are singing Perosi's Missa Pontificalis for Easter.
These are mostly 50ish women who went through the whole VCII no-choir era and I guess never were exposed to good music.
I can't imagine not trying my best to the glory of God . . . but I was trained in a very hard school (first an Episcopal Cathedral choir school for boys and girls, then in a top flight parish choir that sang at Spoleto several years and made recordings.)