Grammar - Am I being unreasonable?

[fulltimeworkingmum]

My DD age 4 and my DS age 2.5 go to Nursery 2 days a week and have obviously picked up some dreadful vernacular which horrifies not only me and my husband but also their grandparents. Why is it that they hear the Queen's English spoken at home where they spend most of their time yet they pick up the hideous colloquialisms of their carers in the short time they spend in day care?
I suspect I am overreacting and all will be well once they go to school but what does anyone else think?

Purplepurple (grin)

My son almost four has already picked up the f word at nursery! I was initially pretty pissed off but I'm sure he's taught the other kids a few of the words that my family use - not english at all - my mum ,when she doesn't know a word in english, makes up a word - it's used by my very very educated father, myself, my husband and my son and it's absolutely fine by me.

My ds also picked up a bit of Polish - something to do with the carers at his nursery being mainly Polish and ds's accent is not at all English now- still doesn't bother me.