Comment by zaphar
Practice, with guidance is superior to practice without guidance. Homeschooling doesn't mean isolation in the average case. You get a lot of practice as a homeschooler. The primary difference is that your practice is both with other adults and children while supervised and also modeled directly to you in homeschooling by other adults while public school is primarily unsupervised and lacking in a modeled behavior to observe.
The number one thing people would comment to my parents about me was that I was so comfortable socially in adult conversations and environments. I wasn't even in high school yet. I had adult level social skills by age 12. I didn't learn how to interact with people from other kids who had no idea how to either. I learned it from my parents and practiced what I learned with both other children and also adults. I'm only anecdotal evidence but a number of studies have backed up my own experience. A few links I had on hand can be found here.
* Medlin, R. G. (2013). Homeschooling and the question of socialization revisited. Peabody Journal of Education, 88(3), 284–297. https://www.stetson.edu/artsci/psychology/media/medlin-socia...
* Shyers, L. E. (1992). A comparison of social adjustment between home and traditionally schooled students. Home School Researcher https://archive.org/details/comparisonofsoci00shye
* Taylor, J. W. (1986). Self-concept in home-schooling children. (Doctoral Dissertation). Ann Arbor, MI: UMI Dissertation Services. https://digitalcommons.andrews.edu/dissertations/726/
No offense, but the idea of having adult level social skills as a child is terrifying to me. Most of the people who I've encountered who describe themselves that way also talk about the burden of from a young age totally internalizing the idea of every interaction being a performance. Every interaction is a new opportunity to try and convince adults that you are worldly and smarter than other kids. That tends to mess you up. Of course, this is purely anecdotal.