Skirts are a different mindset, and with the proper accompaniments, they are as practical as pants.
But you are correct, if you just slap on a new skirt into your all-pants wardrobe, it won't get a lot of wears. You need more with it.
Skirts Hidden Essentials, A Sort Of Guide:
1) Hoisery or cotton tights (more than one pair, actually more like 3-5 different options (color, type...) per skirt).
2) Simple sleek footwear such as classic pump, ballerina, flat pointy toes; and also an open mind towards trying your skirt with more unconventional footwear such as sneakers, clogs, booties... (some will better fit the pencil, some the A-line)
3) A topper that matches (i.e. if a skirt is sold with a specific jacket or cardigan, consider getting).
4) For long flowey skirts: I find wearing them with good solid color yoga tights (mine are black) is a cool way to feel super comfy in a skirt and still wear a skirt! I have the impression I am in gym clothes only people see a girl in a skirt. Add sneakers, cropped denim/leather jacket and golf cap and you're in business!
My most worn skirt is a distressed denim pencil: I wear with color cotton tights in winter (Bleu Forêt works best for me) and bare legs in the summer. Booties or clogs in the winter, sneakers or ballerinas in the summer.