It doesn't matter from where one finds spectrum. It is the expert's job to make the decisions and not end up with interference between spectrum use. One can't reasonably expect the layman to provide a perfect solution where they got it wrong. If they haven't managed the resource well and so have insuffcient to allocate, then we should go without additional services such as 4G until they can sort their mess out. I'm unconvinced I'd be bothered if having to stay on 3G. Heck, I got on perfectly well with 2G.