Jeans were better in the old days?

My jeans have never fit well. I'm told I have no butt, but really? Never a good pair of jeans? However, I still wear them all the time. My other pet peeve in regard to jeans is how they tear. They always tear the same place no matter the brand or quality. It is always the belt loops. Perhaps this is related to my problem in the previous paragraph? Why can't we make the perfect pair of jeans? According to the "History of Jeans" this was the original idea: a cloth that resists tearing. Were jeans made better in the past?