Simple models are useful, but they shouldn't determine who is allowed to live a normal, productive, life without some very compelling justification. Like the "b

Simple models are useful, but they shouldn't determine who is allowed to live a normal, productive, life without some very compelling justification. Like the "binary sex model" is handy, but nothing about it makes it obvious that we should definitely and always lock gender (another non-binary model often simplified usefully into a binary) directly to biological sex.