So, so many ways - as listed in several posts above.
I was going to start with the incredibly fast moving developments in medicine and medical research
Communications - where to start?? How can you compare someone whose dc has moved to Australia now (e-mail, mobile phones, texts, WhatApp, Skype and probably several others I don't use, along with relatively much cheaper and quicker flights) with waving off one of your dc as a "£10 Pom" in the 60s ?
Access to all sorts of information
Road safety
Equalities entrenched in law, if not all business cultures (all sorts, from disabilities, sex, race, throughout anything else you can think of) as well as attitudes to situations such as single mothers and children 'born outside of wedlock' - mothers able to keep babies that would then have been put up for adoption.
Ease and cheapness of travel round the world
Awareness of abuse, and so much support now surrounding what was once very, very deeply hidden.
Currently taxes are so much lower, personal allowance so much higher, inflation so much lower, unions aren't stopping the country from functioning as they were in the 70s