I wear it for work (because, sadly, in most industries you do get taken more seriously if you make at least a small effort). Didn't start till I was 27, because it was kind of annoying and uncomfortable, but then I moved to Japan and in order to not stand out like a sore thumb, I sort of adapted my dress and grooming to Japanese standards. It just became a habit after that, but I do look forward to weekends when I can go makeup free.
Low-coverage foundation, bit of blush, light eyeliner on the upper lids, a single coat of mascara, and brow powder (because autoimmune disease made random patches of brow fall out, so I have weird, wonky brows naturally). Never the full face of caked on stuff like I see some women in (surely that must be uncomfortable...?), but pretty normal by Australian standards. On the upside, wearing makeup has mostly cured me of the nervous habit of rubbing at my face all the time.