Thanks. I know.
Just amusing irony worth pointing out.
Pedantically, I should have used "wont be able" to future-tense it.
Anyway, I'm ready already, with a script to add to any of my distro-respins:
#!/usr/bin/env fish
read -P "Are you old enough? (yes/no) " input
if test "$input" = "yes" -o "$input" = "Yes" ; echo "Proceeding..."
else ; echo "You are not old enough. Exiting." ; exit 1 ; end
;)