When would nested Ifs be more useful than If-ands in Python logic?

Question

When do we use nested Ifs and If-ands?

For example, if I wanted to write a code:

If (Income less than cut off): If (Canadian Citizen?): Receive social assistance

When would I use nested IF like above instead of If-and? At first I assumed it was when we want to access the inner statement only when it evaluates to true but with IF-and you can still skip the inner statement if it evaluated to false.

Answer 1

if cond_1 is True and cond_2 is True:
  do_this()
...

and

if cond_1 is True:
  if cond_2 is True:
    do_this()
  else:  # cond_2 is False but cond_1 is still True
    do_other()
...