My three brothers and I were/are all homeschooled through high school. My older brother, my younger brother, and I all got good to great SAT scores, took early start classes at the local colleges, and got scholarships when we graduated (My youngest brother is still in high school). I played volleyball on a homeschool team for four years, took ballroom dance lessons with a homeschool group for five years, and had lots of friends within the homeschool community. In my area, there were lots of homeschool sports teams, including volleyball, basketball, soccer, and swimming. Those were just the ones that I personally know about though, there may now be others. My younger brothers have also taken ballroom dance, and 1 has done basketball, and the other soccer.
I loved being homeschooled. I felt that I got a very good education, had plenty of friends, plenty of time to socialize, and I really enjoyed taking the early start college classes. I graduated high school with 23 college credits to my name, in things like: Spanish 1&2, World History, A fitness class, a computer class, an English class, a music (voice) class, etc. It was also much cheaper to attend college classes while still in high school, and it meant that I graduated from University with my Bachelor's a semester early.
Good luck in choosing what is best for you! If you do decide to be homeschooled though, look around and see what is available in your area. There's probably more than you would think!