The latest survey results (first half of 2021) on the spread of mobile phones, especially smartphones in the United States, are the US Centers for Disease Control and Prevention (CDC), a public institution in the United States. ) Was announced. According to the report, more than half of households with only mobile phones have reached 68.0%. We will confirm the content of the announcement together with various data on changes over time.
First, ask an adult over the age of 18 about the "telephone environment for the household to which he belongs" and graph the results to check the situation. There are three options for "mobile phone only", "landline phone only", and "both landline and mobile phone available", and the following graph shows the trends. By the way, "mobile phone" is explained as "wireless telephones" in the original text, and corresponds to the conventional small mobile phone mounted on a car and various mobile phones (conventional mobile phones, smartphones, etc.).
Between 2006 and 2007, there was a big change in "both landline and mobile phones" and "only landline phones". This is because there was a change in the questioning method for mobile phone-related items after 2007. Just because the classification has changed, it does not mean that the actual situation has changed significantly.
Aside from that move, landlines are declining almost consistently. Since not only "fixed-line phones only" but also "both fixed-line phones and mobile phones are available" are decreasing, it can be confirmed that the number of fixed-line phones is physically reduced and replaced by mobile phones. In the first half of 2021, only 1.9% of households have only landlines, and 68.0% have already had no landlines or only mobile phones.
This trend does not change when asking children under the age of 18.
The landline ratio is lower than when confirmed with adults. The latest value is 0.4% for fixed-line phones only and 79.1% for mobile phones, which is close to 80%. It seems that this is because many people live alone or spend time with their roommates in student dormitories. It is not surprising that the proportion of mobile phones is high in households without an adult generation who are accustomed to landlines.
The following graph shows the respondents' telephone environment in the most recent period (not per household). Whether you own it or not, you can see the actual situation of what you use the telephone in your life.
Overall, 67.2% are mobile phones only, 15.5% are mainly mobile phones, and more than 80% are using only mobile phones or main phones. 8.1% of people have the same number of landlines and mobile phones, 4.5% of landlines, and 3.0% of landlines only.
By age group, more than 80% of the 25-34 year olds are mobile phones only, and 18-44 years old are mobile phones only / main is over 90%. Even if you are 65 years old or older, over 50% are mobile phones only. Older people are more attached to landline phones, but mobile phones are steadily becoming more widespread and are eradicating landline phones.
By educational background, the fixed-line telephone rate is higher for those with lower educational background. This is thought to be influenced by the degree of household poverty rather than the educational background itself. In terms of household poverty, the higher the poverty level, the more people are in an environment without a telephone. On the other hand, it is interesting that many people with only mobile phones have a high degree of poverty. You probably can't afford to have both mobile and landline phones.
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