Gay Couple Child Question

Legalizing gay marriages means the relatives are clamoring for grandchildren.  Gay male couples are either adopting or using surrogates.  The New York Times recently quoted one eager grandmother to be as planning for her son and his groom to each donate their sperm to a surrogate.  She was being equitable and wanted each of their genetic lines to continue.  She also was unabashedly promoting her baby plans during their wedding. Unfortunately, her son doesn’t even want children.  But there is always the honeymoon to try and convince them.