My 9 year old Nephew got a small handheld emulator for his birthday. Some cheaper knock off unit.
He was excited and was showing me all the cool old NES games he could play. Most from my own childhood.
While grinning at me, my Sister told him to tell me what he had told her the best thing about it was.
My Nephew exclaimed that the very best thing about it was that it took AA batteries. So he didn’t have to wait for it to charge. He could just swap batteries.
It blew his mind when I told him everything was like that when his Mom and I were kids.