1. Most/many drugs have side effects. A “cure” for aging would have to have a very weak side effect profile as it’s not a terminal disease in the short run. 2. Clinical trials for aging would take a long time to run and be quite costly. 3. People are trying to cure this and quite a bit of money has been put into curing manifestations of aging (think all the Alzheimer’s companies or Unity Biotechnologies.) it’s also just really hard science...