Washing hands have been proven to prevent many infectious diseases. It's not the only solution, but it's part of better hygiene. Ignoring hand washing is like ignoring seat belts just because you have airbags.
“During the initial stages of the pandemic there was concern about surface transmission. However, latest research suggests that this is unlikely to be a major route of transmission as although SARS-CoV-2 can persist for days on inanimate surfaces, attempts to culture the virus from these surfaces were unsuccessful.” — The Lancet Respiratory Medicine

COVID-19 transmission—up in the air
As we approach the end of 2020, and a year since the outbreak of COVID-19 began, cases are increasing again. We have learnt a lot about SARS-CoV-2 and our ability to test for and manage COVID-19 has improved, but ongoing debate remains about how SARS-CoV-2 is transmitted.
www.thelancet.com
Washing your hands won’t prevent you from getting Covid. We know which measures are effective and which aren’t. Those handwashing stations are pure theater, like airport security.