No, not all people have can openers. The availability and use of can openers can vary depending on cultural, economic, and personal factors. In some regions or households, can openers are common kitchen tools and are readily available. However, in other places or among individuals with limited resources, can openers may not be as prevalent, and alternative methods might be used to open cans.
In the absence of a can opener, some people use other tools like knives or even improvised methods such as puncturing the can with a sharp object to open it. Additionally, some canned goods are designed with pull tabs, which eliminate the need for a can opener.
It's essential to consider that access to kitchen tools and utensils can vary widely across different communities and socioeconomic backgrounds. Some people may rely more on canned foods that do not require a can opener, while others might have access to various kitchen tools, including can openers, for their daily food preparation needs.