The height of a cyclist is only one parameter, its not enough to make a bike frame that fits.

Serious bike manufacturers ask to their customers more information to define the frame, at least inseam, or the geometry of an existing frame that fits or do a postural study to find out the needs of their customers or have several bike sizes and provide the full geometry information of these several sizes so that their customers can make an educated choice.

I never claimed that most westerns do not fit on a 16" bike, this would be totally stupid because the wheel size doesn't define the bike geometry and 16" covers several wheel sizes.

I only said that a height of 170cm or less doesn't represent the height of the majority of westerns male adults.