There are certain wisdoms that do not benefit from being forced to relive certain parts of life. For example even if I were to decide to travel back in time to grade 9 (high school) it wouldn't matter. Or grade 10 so I could hang out with my crush before she cut her hair short and now looks nasty (I would fall for her all over again)

There are also very disturbing reasons to go back in time. For example I would be mentally 31 y/o in a child's body. So.....

Yeah this is sick bleys.