@danirabbit 100%. I’ve been a committed vegetarian for a long time but when I go home and visit London I always get a Fish and Chips from my favourite place. I don’t feel bad about it because I’ve already put the hours in. I look forward to it.
And you know what? My non-veggie friends see that and tell me if they can “lapse” now and again they’ll make the switch too. Changing habits is a process, far easier to do at your own pace.