Thank for info I really need 2 think about what u all are saying. It does only seem wise for tanks to have biochem. Need to think how i wanne advance my char

Hi Everyone, I am new have been searching forum but could not find answer to mine question. Biochem skill give option to make reusable med kit. (so i read) But its BOP (bind on pickup) Does this mean for each character i have i should first learn Biochem skill and make these item, after that start learning crafting schematics (for example artifice) ? If i do it the other way around, i have 2 unlearn artifice skill first 2 learn Biochem. I am wondering if everyone is doing this? especially the crafters. (i dont wanne lose schematics i have learn) And i am wondering are the reusable items worth the effort of learning biochem, etc? Maybe i got it all wrong and still dont understand the end game setup. Please let me know. With kind regards, Clueless noob