The difference is children back then actually did see their day expand as they were removed from the workforce, making comic book consumption "free" essentially in terms of what it might have replaced just a generation previous.
More so in the cities, not as much in more rural areas where tons of kids were still doing farm work with 10 brothers and sisters along with them in the 40s-60s. After that farms had dropped quite a bit but it was still until the late 70s that farms and farm labor lost enough need for labor that caused most rural kids to completely exist the agricultural sector minus the direct sons and daughters of farmers.
That feels like a stretch. In the 1850s it was pulp novels and in the 1990s it was video games.