In the ten years since the Netherlands legalized homosexual marriage, only 15,000 couples have actually married. The Dutch national statistics agency estimates that that is only 20% of homosexual couples in the Netherlands, compared to a marriage rate of about 80% for heterosexual couples.
This confirms what I had estimated based on Eskridge and Spedale's pioneering study of gay marriage rates in Denmark, the first country to legalize homosexual marriage.
There is not a large demand for marriage among homosexuals. There is a large demand for the right of homosexuals to marry among liberals.
As a practical matter, passing gay marriage laws does not change much in how very many people live. This says to me that those who are worried that gay marriage laws will lead to big changes in American life can rest easier.