DST was introduced in the U.S. with the Standard Time Act of 1918 as a measure to save resources needed for the war and to extend the working day.

We definitely don’t need it for that reason anymore.

Another well-known theory suggests that the agriculture industry came up with the idea to give farmers more daylight hours to spend working in the fields. Ironically, farmers have been vocal about wanting to scrap DST as it interferes with their routines, with most preferring to use seasons and the sun rather than a clock to establish their daily schedules.

I can attest to this. My grandparents were full time farmers and they didn’t live by the clock, they lived their lives by the seasons. And, they didn’t like the time change.

A 2020 National Institutes of Health (NIH) study also found that daylight saving time changes heightened the risk of experiencing several health issues including immune disorders, heart diseases and personal accidents.

a study of Indiana (which had been largely exempt from DST until 2006) found newly implemented DST led to a 1 percent rise in residential electricity use, and predicted "a cost to Indiana households of $9 million per year in increased electricity bills.

My belief is the original reason for DST all the way back in 1918 is still the real reason, it is beneficial to businesses. Our Government does nothing to benefit ordinary citizens, and DST is no exception. After a year of leaving the clocks alone we won’t think about DST at all.

Sauce:

https://www.newsweek.com/origin-daylight-saving-time-why-we-still-have-it-1687090