Not entirely sure why front-end is still regarded as suitable for more juniors than seniors. In today's development landscape I think they're both equally complex. I also see a lot of developers being pushed into front-end and they end up hating web dev as a whole because of having to deal with layouts, design and browser inconsistencies, whereas on the back-end they wouldn't have to and might feel a lot more productive.
Since we have hired devs with no previous experience, and since we use MVU, front end is a very safe entrypoint to just learn to dev. The normal mistakes you make while learning are not overly penalized later... it takes some of the pressure off. Ultimately, the goal is to get our devs to have broad experience. And so far there is not enough of us to go around to specialize in only one area anyway.
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