I played my last game of 1e around 1983 and didn't play D&D again until a 5e meetup in 2016. I walked away from that first 5e session saying, "Wow, that felt just like it did in 1979 when I started." I've been playing 5e ever since. D&D didn't die with TSR. In fact, TSR almost killed it in the 1990's and WotC revived it and has been a great custodian. I just started playing an OSR campaign using OSE and there is a close kinship between rule sets separated by decades.