I was homeschooled in a similar way described above, starting community college at 16. I was relatively sheltered and never attended any sorts of sports clubs or any other activities that would involve socializing with people I didn't know. I would say it definitely had a negative impact on my social skills, as if I was learning how to socialize 5 years later than everyone else my age. Working jobs helped develop these social skills to a point, but I'm not great at making friends outside of work and I still deal with social anxiety. I believe homeschooling is a great idea, but social development should definitely be considered. Not sure about the best way to handle it though.