they have targeted civilian infrastructure like the powergrid before
First, there's a huge difference between targeting civilian infrastructure vs. actual civilians. Blowing up a bridge across a river in a city is not the same as indiscriminately bombing the city.
Second, there is likely no significant infrastructure that is used purely for civilian purposes. The fact that Russia hasn't destroyed any infrastructure it can reach (which is virtually everywhere in Ukraine) is evidence that they are showing at least some restraint. Contrast this with Gaza (where the Israel had to be pressured to even allow water in) or the indiscriminate bombing campaigns that everyone conducted in WWII, and the U.S. in particular conducted in Korea and Vietnam.
First, there's a huge difference between targeting civilian infrastructure vs. actual civilians. Blowing up a bridge across a river in a city is not the same as indiscriminately bombing the city.
Second, there is likely no significant infrastructure that is used purely for civilian purposes. The fact that Russia hasn't destroyed any infrastructure it can reach (which is virtually everywhere in Ukraine) is evidence that they are showing at least some restraint. Contrast this with Gaza (where the Israel had to be pressured to even allow water in) or the indiscriminate bombing campaigns that everyone conducted in WWII, and the U.S. in particular conducted in Korea and Vietnam.