Your point is very true , my objective on this post was to explain how the working of 5G is in comparison to previous technology . Yes 5G according to the ongoing research on long exposure is very harmful ....it may also lead to cancers and various other skin diseases but upto my knowledge 5G will not completely replace 4G it will probably be utilised when that sort of speed would be required.As a software student I think we require such speed but not all the time it depends on the work we have . Personally I think until we find means to avoid these side-effects we should refrain from using 5G.