Making your own is worthwhile for oddball loads and custom rounds for rifle, and some pistol ammo. Something like 9mm just isn’t worth the time anymore after the cost of primers and powder more than doubled. I’ve been casting and loading for a bit over 10 years. Definitely want to wash your hands well after you finish, and no eating or drinking while you work. A little lead exposure doesn’t worry me, all my years working in labs around concentrated chemicals and drug actives are much more likely to cause me issues as I get older.