I feel sorry for average non-technical people who get hoodwinked into VPNs. The majority of people have absolutely no need for a VPN for "privacy" reasons, particularly these days with wide adoption of TLS which prevents ISPs from reading and/or injecting content into streams.

Modern cases for a VPN:

1. The few countries/regions with severely corrupt governments/ISPs.

2. Accessing region-locked services; eg. another country's Netflix.