Highly doubt any Zen master would reprimand you. Any habit you want to keep needs to be sustainable, if it doesn't fit the way your life works, you probably won

Highly doubt any Zen master would reprimand you. Any habit you want to keep needs to be sustainable, if it doesn't fit the way your life works, you probably won't keep it. They would however most likely encourage you to challenge yourself from time to time when possible to see if you can get comfortable doing a longer session once in a while.