Unilad: ‘We found that same-sex parents are often wealthier, older and more educated than the typical different-sex couple.‘Same-sex couples often have to use expensive fertility treatments and adoption procedures to have a child, meaning they tend to have a high level of wealth.’But when researchers from Oxford and Maastricht Universities controlled for socioeconomic status, the association of same-sex couple’s children doing well in class was reduced ‘but remained positive’.Suggesting other factors are at play, Mr Mazrekaj added: ‘For instance these are wanted pregnancies and same-sex parents are also very likely to be highly motivated to become parents given the procedures they have to undergo to have children.’But he said the only data.