Living carfree long term

Hi all, I understand a large number of Londoners don't drive. I was wondering what life is like when you don't drive long term (like 5+ years), and how you manage when you venture outside of the capital.

After 8 months I'm struggling with the idea of continuing to live here because I haven't been able to drive and get chastised by those who live outside of London for not having a car (like I'm a kid again!)

Thanks in advance.