Age, Has been the biggest dividing line in voting since the 2017 and 2018 GE, For Example, Younger voters tend to be more left wing, while older people tend to be more right-wing. In 2017, 83% of over 65's voted Conservastive compared with only 39% of under 25's.
However, younger people are less likely to vote, For example, 43% of young voters didnt cast a vote during the 2017 GE