Here are some mending done by a sewing machine. When there are tears, cuts, or wear, I cannot make it back to its original shape. However, I can close the hole so that you can still use the garment.
This is recommended on pyjamas, underwear, or otherwise considered private wear. It is especially good for a favourite pyjamas or nightshirt that are so comfortable because you've worn it for a long time...
Or, if you don't mind a little stitches here and there, you can definitely wear the repaired garments in pride in public!
I see in many articles about clothing industry waste that people just throw away reparable or mendable clothing pieces in garbage. What a pity. (There's also an issue of too much being produced, too, but that's another issue that I am afraid to write about because I would not be able to stop talking about it. If you're curious, just google the topic... There're a ton of articles in the cyber space.)