if it is hygienic, it depends on two aspects. On the one hand, whether it is hygienic at the stage of food preparation; On the one hand, it is whether his cooking (that is, you ordered what he cooked for you on the roadside) is very hygienic. In the latter case, it is mainly because it is fine when there is a lot of dust on the roadside and his body parts are not in direct contact with the ingredients. In the former case, you don't know whether the environment he prepared is sanitary or not, and whether the things he used have deteriorated. However, it's best not to eat roadside stalls often, and it's ok to relieve your hunger occasionally.