Not if they never find out that there exist things called "barbies". We never introduced our girls to barbies or anything -- only cars, legos, etc. etc. and they're more than happy with them.
I think barbies dolls should be outright banned. Why're we teaching our children to worry about their looks at such a young age? That's what barbie dolls are -- "pretty woman", woman with obnoxiously pretty dresses, lipsticks, etc. etc. Why're we normalizing that kind of behavior for children?