I don’t agree with you on velvet, I think it’s colour and garment not so much tne material on its own . As said I have three velvet pieces I wear a lot.
1/ I have this waistcoat. I wear it year round. More in the warmer months as I wear it as the model does, with nothing underneath . It doesn’t look Wintery.
https://editorialist.com/p/meem-velvet-tailored-vest/
2/ i also have this blazer in a deep navy and it’s great with jeans for going out, and again not winter in my view. It’s not heavy.
https://www.meandem.com/stretch-velvet-sharp-shoulder-contour-blazer-black?glCountry=GB&glCurrency=GBP
3/ I have the Bella Freud one, it’s in a lovely cognac colour, and again fab for going out, with jeans or a pair of cream trousers and a silk top. This one is heavier but the pale golden cognac colour makes it look lighter.
https://bellafreud.com/products/velvet-saint-james-jacket-dark-marine?srsltid=AfmBOoqv29s8itEGlMktdETAJZCR_qJK8y_b-vvV7JFK7FZIptKaJkXt
I’d not wear in the height of summer when I don’t need a jacket in the evenings, nor in the depths of winter when I need a proper coat, but I socialise a lot and these three things I wear a lot to go out in,ie dinner, drinks, shows etc, the velvet blazers I usually team with light silk tank tops in summer and spring, and when it’s cooler a fitted fine knit. The waist coat, I wear with wide leg jeans or trousers.
i think velvet can be great and five a very luxurious feel to an outfit, I think the issue is when it’s red or emerald green or a dress, as there is nothing to break it up, where as with a jacket or waist coat, the rest of the outfit, in different materials, breaks it up.