Let's talk reality here. Your grandfather, or at least the Normal Rockwell prototypical thing you've got stuck in your head, most probably lived in a sub 1000 square foot house with one bathroom and no garage. He probably had one car that would be lucky to reach 75,000 miles. He couldn't afford to even call people outside a radius of 100 miles from his home for more than a few minutes a month, let alone communicate instantly worldwide at a whim as you're doing here. If he had a TV it was small and black and white, no way to access movies outside the theatre or what was being shown on TV, and he certainly didn't have any gaming systems. He had access to 10 radio stations for entertainment, 5 of them AM. He had no access to MOOCs, lucky for him he lived in a college town otherwise if he wanted to learn about something new it would be largely unobtainable for him. He probably never flew his family across the country, let alone to Europe, Asia, or South America for vacations, a flight to Europe for the family would be more than his annual salary. And we could go on and on and on about the ways in which your idealization of that era fails in the face of reality.
Lets say you had a blue collar skilled labor job, lets say a welder at median wage of $41,000/year. You too could pick a backwater rural area and buy a house equivalent to his and opt to go without anything that was in common use since 1950 for someone of his income level. If you enrolled your kids in a Texas state school and you were in-state, then with the various income based discounts you'd probably end up paying a couple thousand a year in tuition, heck if they got into Stanford they'd get free room and board and tuition at that income level. Bottom line, you could live just like your grandpa on today's salary if you limited yourself to only what your grandpa had. But you don't actually want that. You want all the benefits of today's life living where you want to live. What has "inflated" is our standard of living, which most of us actually appreciate. I sure has hell wouldn't want to live the way your grandpa did, that's my version of hell! Oh, and you seem to think the whole wife barefoot and pregnant staying home with the kids thing is considered ideal apparently. OK Boomer.