Not everyone can appreciate the high of true sativa,specially the young people the who are used to the strong indica hybrids,time ago i share few spliff of green haze thai with one friend,after one hour of laugh,philosophical speeches and happy moments, he told me that the grass was light, and that he felt nothing ....all this while he was still laughing!!!
I think its the high CBD blocking up their receptors. It takes 1-4 weeks for them to properly reset. I will tell people I give my sativa to, smoke only this for 1 week and then tell me if you like it. Don't just smoke one joint.