Will my brother do other drugs?

ok,so brother 19 , 15 , has smoked marijuana beofre(so have :p) , told me other day smoked magic mushrooms!!!! upset him should or fine?? have never tried other drug , never , other question perhaps go onto other drugs there next step shrooms??

answers apreciated

ok,so brother 19 , 15 , has smoked marijuana beofre(so have :p) , told me other day smoked magic mushrooms!!!! upset him should or fine?? have never tried other drug , never , other question perhaps go onto other drugs...

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