"Types lead to cleaner programming,instead of shoving random stuffs into an untyped list,a dev has to think about data structures."

You're more than welcome to not think about what types you put into a structure/list. You'll quickly learn how to use that list/structure without hand-holding. For 90% of the problems out there, you don't need anything other than the basic data structures, and they're pretty straightforward to use without having to think about types.

Note. Please don't confuse Javascript's weak-typing with Python's typing, as Python is strongly-typed.