Most likely, your family will find many opportunities to gather with other homeschoolers of all ages. Homeschooled kids often get involved with the community at large in volunteer work or pursuing personal interests. If you are just pulling your children out of school, remember to give yourselves some time to readjust to the new approach to life. Many people say it takes up to a year to find your family's natural rhythms, and even then, it seems to be a constantly evolving and exciting process that changes along with the children. Some homeschool one child while another goes to school.
Some kids homeschool for a while, then go back to school or attend school part-time.
Don't view the beginning of homeschooling as a path that is irreversible or sending your child back to school as a failure. What's important is finding what works for your family.