Reasons for staying on a old version ( Re: Prepping for upgrade)

[Christopher Marlow]

I am just curious why people stay on old versions of Fedora like say
FC30 instead of upgrading to 31? I am guessing after a new version of
FC comes out, that the previous version is still supported for a
limited time?

Thanks,
Chris

Fedora 31 Workstation
XFCE Desktop Enviroment.