* Lack of Centralized Data: Homeschooling is largely unregulated at the national level in many countries, making comprehensive data collection challenging. There's no single, mandatory reporting system tracking homeschoolers' post-secondary education choices.
* Varying Definitions of "Success": What constitutes "making it to college"? Is it enrolling in any college, a four-year university, a specific type of institution, or graduating? These variations greatly impact the resulting statistic.
* Self-Reporting Bias: Data often relies on self-reporting by homeschooling families, which can be incomplete or inaccurate.
While some studies have attempted to estimate the college enrollment rate of homeschooled students, the results vary widely and often depend on the methodology and sample used. Generally, studies suggest that a significant portion of homeschooled students do attend college, but the precise percentage remains elusive and any single number should be viewed with caution.