My mom got into adult lego when she took apart my child hood lego and reassembled them to resell.
Now we mail each other sets that the other is done with, and it gives us a great opportunity to connect. We're both anxious people and there's something relaxing about just assembling something where everything has a place.
When she found out there's a lego con in my town, she made plans to come visit me so we can go together and I can show her around the city I just moved to.