Reasons for low voter turnout:
Voter apathy - growing sentiment among non-voters that elections don't change much
OR satisfaction with how things going leading to laziness and not voting
e.g. voter turnout decreased to 59% in 2001 when almost certain Blair government was being re-elected
Over the years, numbers MPs held to contempt and ridicule over allegations and scandals
media interest in stories exposing MPs, damages credibility of Westminster and fuel voter disengagement
e.g. private interests taking precedent over representing the public, "partygate" during Covid