I have some friends who are very vocal in support of this act and I've tried to consider both sides. I see the argument for allowing this but I also don't think it's should happen.
Families who choose to homeschool have made the conscious decision to not participate in the public education system. I have no issues with this and have personally experienced many home schooled students who are intelligent, successful and very well adjusted despite the stereotypes. Part of opting out of the system means their students are not subject to the same curriculum, school day length, number of credits to be earned so they should not get the same benefits offered to public school students. This would include eating in the caffeteria, accessing the library, school computers for use, textbooks for what classes still use them, and yes athletics.
My wife and I have no children who are school aged anymore yet we still pay school taxes and do not get any direct benefits of this. We all pay taxes in some shape or form for services we don't use or access. That's fine. This isn't an anti tax argument nor am I opposed to home schooling. I just believe people who choose not to participate in a system shouldn't get the benefits of it.