I would think by Saturday even with settling, you should have a pack in excess of 3 feet. I might as well as I think I’m at 2 feet in the woods, although I haven’t been out for a few days.
this really is a period to be savored and it’s totally cool that your son is into it with you! I’m hoping one of my little ones is a weenie. So far they go out in the snow and have a good time even when it was 2° and snowing a few weeks ago they’re outside walking around having fun.