Original alignment specs for manual steering cars had a bit of negative caster, IIRC. To easy the effort of steering.

If steering effort is objectionable at speed something is wrong. I keep hearing how hard it is to steer a manual steering car, even parallel parking my manual steering cars I have NEVER found one to be objectionable. Only time I ever found steering to be annoying is when I locked up the pump in my 64 300 and spent the next two years driving it without power assist.

They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.