sizes have changed...

I was looking at vintage sewing patterns, and the sizing on these things are skinny! Here is an example for all you "size 10" girls out there... in the 1960's, a size ten had these measurements: Bust: 31 waist 23 hips 33. those are in inches. Has the clothing industry gone soft and adjusted the numbers to make us feel better? OR have we gone soft (around the middle...) OR (here's my personal opinion) is nutrition these day just SOOO much better that we are taller, have bigger feet, and hence, bigger booties too? (too a point you know... always be healthy!)