Table 2.

Socio-demographic characteristics of the informants.

No.	Gender	Age	City	Occupational status	Tenure in the F&B industry
1	Male	57	Zhangjiagang	Director of F&B	35
2	Male	32	Sanya	F&B manager	11
3	Male	42	Beijing	Restaurant manager	20
4	Male	39	Beijing	Restaurant manager	15
5	Female	29	Zhuhai	F&B manager	6
6	Female	30	Guangzhou	Restaurant manager	10
7	Male	29	Xiamen	Restaurant manager	7
8	Female	33	Xiamen	F&B director	10
9	Male	40	Zhongshan	Executive chief chef	20
10	Male	32	Zhuhai	F&B manager	6
11	Male	39	Zhuhai	Chief chef	20
12	Male	26	Guangzhou	F&B associate manager	5
13	Male	31	Guangzhou	Restaurant manager	6
14	Male	35	Zhoushan	F&B manager	10
15	Male	30	Nanjing	Restaurant manager	11
16	Male	43	Guilin	F&B manager	17