What we did in the 70's doesn't really compare to now.
We're living in a digital age and encouraging modesty in youngsters is probably a good idea, although it's sad that it's becoming necessary.
A couple of months ago my cousin emailed me a link to a Facebook page asking me to help report it and have it removed. There were 100s of pics of little girls 'upskirt' and the page was liked by about 375 people 
Most of them were on climbing frames at the park and the pervy comments were disgusting.