Speaking of Hainanese, what is your first impression?

The physical quality of Hainan people is really good, and northerners need not be dissatisfied with this. Hainan people may be slightly inferior in absolute strength. In other respects, they did abuse northerners, which may be related to the local climate and environment. Children have been herded together since childhood and run barefoot all over the street. Taking a cold shower in winter (it's really not warm in winter in Hainan) and sleeping on a mat really seldom get sick. Playing football barefoot, playing basketball barefoot, boys with a height of 160 take off their bare feet and grab the basket everywhere. The speed of climbing trees barefoot makes you dumbfounded. China/KLOC-Most people are over 0/00 years old, and they have never been to a hospital in their whole lives.