Not for all types of services. ISPs are sometimes under obligation to log, but VPN services don't belong in that category.
I can't speak for others but we have contacts with legal experts (in a few jurisdictions) that alert us to changing laws. Ultimately if a country required us to start logging we would just cancel all of our machines there and leave.
On the topic of trustworthiness, you are completely right of course that VPN users put a lot of trust in their VPN provider. There is also the lemon market aspect - the information and competence asymmetry between user and operator. That begs the question of how to ascertain trustworthiness.
We think things like this help:
https://mullvad.net/blog/2018/10/17/signals-trustworthy-vpns...
https://mullvad.net/blog/2019/6/3/system-transparency-future...