I’m still interested in my theory that the “steering” is not so much being told “Plumbing is a nasty men’s job that might break your fingernails” as not being told “Plumbing is a mucky job, but it brings in good money” – either only boys are being told this, or no-one’s being told it but boys are more interested in finding out for themselves, or boys and girls are equally aware of it, but boys consider it more important.