Never see CB's or TCU's in North America

Is it just me, or is there a complete and total lack of vertical development of thunderstorms in live weather? Weather Force does an incredible job rendering CB’s and TCU’s, but inevitably, when switching to live weather, although the weather is correct, the clouds generating lightning and heavy rain look like stratus clouds. They build as layers of stratus clouds, not vertical columns of rapidly rising cumulus.

I see the clouds more correctly in Europe.