What I find more troubling is the attitude of indifference of the general population towards the trashy environment. They sit there and seem not to be bothered by it.
I remember the Tak Baath ceremony occurring during the last morning of Boun That Luang in 2010, a lound speaker broacasted in Lao to the well-dressed Lao folk of all ages who came to give alms not to let papers or trashes behind after the ceremony.
"ໃຫ້ພາກັນຊວ່ຍເຫຼືອຮັກສາຄວາມສະອາດ. ຢ່າປະຖິ້ມເຈ້ຍແລະຖົງຢາງຕາ່ງໆໄວ້ໃນເດີ່ນທາດຫລວງເດີ. ຄັນເຮັດຈັ່ງເຊັ້ນຊິນະອາຍເພິ່ນທີ່ພາກັນມາຮວ່ມບຸນນຳກັນນີ້ຈາກບາ້ນໄກ້ຄຽງແລະຈາກຕາ່ງຊາດ". Of course, NO ONE seemed to care what the speaker said. You saw papers and garbages left behind everywhere. It's a total lack of education and discipline.