That would be true if vaccination rates were high enough in adults. They're not. So far, 21% of Americans have been fully vaccinated. That's a far, far cry from herd immunity.
Many people on this thread are saying we should treat COVID like the flu now. COVID is different from the flu and doesn't mutate as fast. We can't eliminate influenza through vaccination efforts and herd immunity because it mutates too fast and can be spread fairly easily across species. However, many experts believe we can stop COVID from being able to spread and possibly eliminate it with herd immunity through vaccination efforts. To do that, we need more people getting vaccinated, and we need to keep practicing mask wearing and social distancing until that happens! We can stop COVID. However, the more variants that spread, the more difficult it becomes. That's why experts say stopping COVID-19 is a race between vaccination efforts and the spread of variants. There are things we can do to do our part to help our country. One is to get vaccinated. The other is to keep following mitigation practices to prevent more variants from emerging.
You tell me to find more sources. Literally every reliable source has public health officials and doctors urging people to continue wearing masks and practice social distancing in public places.
Here's another expert who is urging mask use:
"'I do think that probably, well into next year, it may be appropriate for people to continue to wear masks when they're out in public,' he [Dr. Dean Winslow, a Professor of Medicine at Stanford University] said."
"Dr. Winslow said until a significant percentage of the population is immunized, masks should continue to be part of everyone's plans.
"'It's really important that until we get well above, I think 75, or even 80-percent of the population immunized, that we continue these physical mitigating measures,' he advised. 'It's a reasonable thing to do. It's relatively inexpensive and I think now, most of us are used to wearing masks, most of the time.'"