only crossing on a pedestrian traffic light while it's signals you to wait is frowned on (and illegal) (also including crossing just idk. 5m below the traffic light while it's red for pedestrians).
for the rest basically if you do it "unsafely" especially if there are children it's also frowned on but otherwise very normal
some more conservative place might also frown on crossing close by a pedestrian crossing even if there is no red light at the crossing because "why are you so lazy to not walk that additional idk. 20m"
but I have yet to meet anyone who expects you to idk. walk down 100m to the next crossing and then 100m back or something like that
and all of this is for streets where there might be a traffic light, for most residential side streets people all the time cross wherever they like without giving it any thought
and in rural villages stuff like children playing on hardly used residential side streets is not really that rare (important not the "main" street passing through the village even if it's classified as a side street too.)
for the rest basically if you do it "unsafely" especially if there are children it's also frowned on but otherwise very normal
some more conservative place might also frown on crossing close by a pedestrian crossing even if there is no red light at the crossing because "why are you so lazy to not walk that additional idk. 20m"
but I have yet to meet anyone who expects you to idk. walk down 100m to the next crossing and then 100m back or something like that
and all of this is for streets where there might be a traffic light, for most residential side streets people all the time cross wherever they like without giving it any thought
and in rural villages stuff like children playing on hardly used residential side streets is not really that rare (important not the "main" street passing through the village even if it's classified as a side street too.)