From a Gallup poll released last month.
6.4% of american adults in the 18-29 year old category identify as gay, lesbian, or bisexual. 3.2% in the 30-49 category and only 1.9% of those over 65. This is clearly a "comfortability" issue.
At any rate, approximately 1 out of every 15 1/2 people you meet is gay. So maybe Kinsey was right after all. 120,000 people were surveyed.