Honestly I've kind of been expecting to not play very much on launch day...
Not because I don't have the time. March 20th is a national holiday in Japan, the Spring Equinox, so I'll have a three-day weekend, but I remember how it was in ACNL.
I tried not to get spoiled too much for ACNL because I had tried to look at every bit of info for ACCF and I think that ruined the experience a bit for me. But still, when I picked it up on the first day I went through all of the tasks I could, bought what tools I could, explored etc. but kind of felt like, "well, I guess that's all I can really do... I'll wait until tomorrow to do any more then." and then things started to pick up after day 2.
I had friends, but I mostly communicated with them through SwapNote so I don't think I was able to WiFi or add anyone as a best friend so that we could message each other. But maybe I'm wrong...
With how much progression there is in ACNH I'm wondering if it'll be about the same for me.
Okay, I checked my activity log and it seems like my memory has failed me a bit. On launch day I played for 6 hours, the next day 3, then 3, 4 1/2, 6, 4 1/12, 6 1/2... so it wasn't short at all the first day! But I do remember the first day being the least interesting.