Farzanah
Oxfam have dedicated s/h bookshops. It’s always worth trawling them if you want to buy newish ones too.
A friend of mine who is a retired librarian runs one. The upside is able to spot things like first editions and other valuable books that someone like me wouldn't. People often clear out all the books from a house when someone dies, and there can sometimes be gens in there.
The downside is that local stores now don't take books, which means that the 'bog standard' paperbacks that most people want are not available, and those wanting to pass on books can only do so if they can get to a bookstore. The one my friend runs is in a city centre, which I think is true of most of them. As I said upthread, I couldn't carry a large number of books to the city and carry them from the station to the shop, so Oxfam loses my book contributions.
I think that ideally charity shops should benefit a lot of people, and a balance needs to be struck between their needs. They raise money for the charity, of course, and arguably that should be the prime aim. Then there is the chance for customers to get a bargain by shopping there, as well as the fun of browsing a random selection of items. They also allow people to declutter without feeling guilty about getting rid of perfectly good items, and have benefits for the people who work in them. My mum worked in one until it closed in lockdown. It got her out of the house and meant that she was in company for 2 days a week - it was great for her mental health and self-esteem, I think. Also, my son worked in one when he left university. He was at a bit of a loose end when the novelty of not studying wore off, and again it boosted his self-esteem. He did put it on his CV, but whether it helped him to get his job in IT or not we'll never know - I do think it shows that someone has a work ethic, and that they are willing to 'muck in', though. Charity shops also bring footfall to High Streets, and plug the gaps left when units are between rentals - they do a lot more than sell old tat.
I think that all of these benefits to different people should be borne in mind. Yes, people work voluntarily, but they get payback, too, just as having somewhere to take things that are too good to throw out benefits the donors and customers can get something back for what might otherwise have been a donation, and the charity benefits from all of it, and town centres have at least some shops open.
I think it would be a shame if this balance is tipped by making it more difficult for people to donate. I think that some of the volunteers nowadays are younger people wanting to get into retail management and so on - maybe these are the ones bringing in specialist shops and more 'efficient' systems, forgetting that the shops exist in communities and are about more than just profit?