Then you're ignoring more evidence than Pat Roberson does to form his beliefs on creationism.
You yourself have cited education as a key factor to success. If I plat search long enough, I think I can even find where you feel higher education should be a right (please correct me if I'm wrong on that point).
Given that, here's what NIH says about Marijuana and school:
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Adolescent Marijuana Use and School Attendance.
Roebuck MC, French M, Dennis ML; AcademyHealth. Meeting (2003 : Nashville, Tenn.).
Abstr AcademyHealth Meet. 2003; 20: abstract no. 87.
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RESEARCH OBJECTIVE: Several economic studies have linked educational attainment with drug use (Cook & Moore, 1993; Yamada, Kendrix, & Yamada, 1996; Dee & Evans, 1997; Bray, Zarkin, Ringwalt, & Qi, 2000). None, however, has looked at partial attendance or examined different frequencies of drug use in these equations. This paper explores the relationships between adolescent marijuana use and both school dropout and truancy. STUDY DESIGN: The analysis predicted adolescent school dropout and, conditional on being enrolled, estimated the number of days truant in the past 30 days. Dropout and truancy were estimated using four models. Along with individual and family characteristics, Model 1, the core model, included a single binary measure of any marijuana use during the past year. Model 2 segmented marijuana users into two discrete groups: chronic marijuana users with weekly or more frequent use during the past year, and non-chronic marijuana users with less than weekly use during the past year. Model 3 controlled for other drug use by adding a dichotomous measure of any drug use other than marijuana during the past year to Model 2. Finally, Model 4 augmented Model 3 with a measure of any alcohol use in the past month. The potential endogeneity of marijuana use was tested in all specifications. POPULATION STUDIED: Data pooled from the 1997 and 1998 National Household Surveys on Drug Abuse were used to form a sample of 15,168 adolescents aged 12-18 who had not completed high school. PRINCIPAL FINDINGS: The results indicate that any marijuana use was positively associated with school dropout and truancy in all models. However, when chronic marijuana use (weekly or more frequent) was distinguished from non-chronic marijuana use (less frequent than weekly), chronic marijuana use was found to be the dominant factor in these relationships. These results prevailed even after controlling for other drug and alcohol use. CONCLUSIONS: A general conclusion from this research is that all marijuana users are more likely to be school dropouts and, conditional on being enrolled in school, skip more school days relative to non-marijuana users. Weekly or more frequent marijuana use (chronic) had a larger positive marginal effect on school attendance than less than weekly marijuana use (non-chronic). Indeed, when non-chronic marijuana users were distinguished from chronic marijuana users in the dropout equation, the marginal effect of chronic marijuana use was more than four times the marginal effect of non-chronic marijuana use. IMPLICATIONS FOR POLICY, DELIVERY OR PRACTICE: This study has several important implications for educators, substance abuse treatment providers, and policymakers. First, all levels of marijuana use were associated with increased truancy and dropout. The fact that higher frequencies of use showed larger marginal effects than lower frequencies of use further strengthens the claim that adolescent marijuana use is associated with increases in school attendance problems. Second, these analyses suggest that "one size fits all" prevention programs are probably inappropriate. While general prevention programs may be sufficient for non- or even low-frequency users, high frequency users may require more intensive early intervention or even brief treatments. Furthermore, reaching these more chronic users via school-based programs may be problematic given these adolescents attend school much less than their peers.
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Cliffs notes: The more you smoke, the greater your chances of attendance problems and/or dropping out of school.
How can a drug that denies someone of their basic rights (your right to an education) also add to their ability to enjoy their own existence?
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