kkintea I agree with all your comments above, less to pack! And no need to decide which top matches with which skirt. I too wear merino dresses, great in summer and winter.
During the day I wear a merino hotpant length short underneath. You never know, may need to jump a fence or sit cross legged whilst out and about. Must admit no hiking or biking in a dress yet, maybe just wear leggings under for some leg protection when the time comes.
My typical packing list:
no sleeve tank style dresses Crush Dress Stripe - Icebreaker (US)
Maxi Dress ~ Smitten Merino
3/4 sleeve dress Jackie Dress ~ Smitten Merino
wrap around long sleeve dress... doubles as a longline cardi Merino 195 3/4 Dress Women's | Macpac
Usually add a couple of icebreaker t shirts and merino yoga pants and leggings to the bag. So versatile, creates many combinations, and of course you can wear each merino outfit more than once.