Americans: when will we have parties, social gatherings, and special events again despite us having a vaccine?

Everyone keeps saying by summer 2021. I feel like many people are underestimating how long it will take to roll out the vaccine and for everyone to take it. Taking into account those who don’t care about social distancing, causing a rise in cases. There are also many people who still don’t acknowledge the virus. I think personally by 2023. 2021 is going to be another quiet year.