I'm not sure if I'd compare a type system to training wheels. In general, a type system will be able to tell you that you're doing something wrong, but won't be

I'm not sure if I'd compare a type system to training wheels. In general, a type system will be able to tell you that you're doing something wrong, but won't be able to correct it. You're still managing the memory/lifetimes yourself. Something like garbage collection would be more like wheels, since it does the work for you.