I don't own many clothes in the first place so I don't have a problem. Just the basics. If I grow out of my clothes I pass it on to my younger siblings or cousins.
It is surprising to me that Goodwills throw out the clothes. It should be given away or donated if thats the case. I know that many people out there would want the clothes. I volunteer at a breakfast distribution where we pass out food, clothes, and toiletry. We never seem to have enough clothing and in these winter months especially it is quite sad.