I patch my sons' jeans. They don't mind a bit of ripping here and there, but like patches if tears are too big or are in an embarassing place
I use an old pair of OH's jeans that he is never going to fit into again. If the rip isn't too big, I sew the patch on the inside, and then blanket stitch around the rip on the outside to stop it fraying. They like this because it looks like jeans they've seen for sale where this had been done to them beforehand. So now the repaired jeans look as though I could've bought them looking like that
As to my own clothes, I cut sleeves shorter when cuffs on long-sleeved t-shirts have lost their shape, and if I think 3/4 length sleeves will look right, and I often change buttons on coats, jackets, cardis...... I'll replace the odd zip, mend pockets etc and have embroidered over moth holes or tiny rust marks - it tends to depend whether I think there's enough life in the garment to warrant the time spent reviving it, or whether I'm particularly fond of it.
I have vivid memories of my mother darning my woolly school tights. She used dark brown wool for darning, which was fine when the tights were dark brown, but not quite so glam when they were beige