US first lady Melania Trump's decision not to wear a headscarf upon arrival with President Donald Trump in Saudi Arabia has drawn attention on social media. But her decision is consistent with custom for female foreign dignitaries visiting Saudi Arabia. <br/><br/>British Prime Minister Theresa May and German Chancellor Angela Merkel also shunned head coverings during visits this year, showing how common it is for high-level female visitors to skip wearing a headscarf. <br/><br/>President Donald Trump had criticized former first lady Michelle Obama for not wearing a head scarf during a January 2015 visit to Saudi Arabia with then-President Barack Obama. Saudi Arabia is the first stop on Trump's first foreign trip as president.