honestly its because culture grows tired of needless fabrications; it's tiresome. another factor would be manufacturing system we use as to why goods dont offer better design. and various reasons could be picked from that. my sewing machine arrives 29th(Consew 7360RB-2SS). going to be doing wall tent projects with some technical features. its tools, manufacturing that is the security we need. that and ability to communicate. because else it is an issue of transportation as long as a system of exchange or barter exists.