I would say it’s up to each person to define what their needs are. To take the example of the pillowcases, I don’t need that, but suppose there’s someone who struggles to sleep and for whatever reason, they find that these sorts of pillowcases greatly improve the situation for them. I’m not going to say “no, you shouldn’t have that!” However, if a person is laxly defining their own needs and they feel upset when someone suggests a general sentiment about excess, then that person’s own mind might be suggesting something to them about the nature of their actual needs, as opposed to what might be a justification for excess.
I would say it’s up to each person to define what their needs are. To take the example of the pillowcases, I don’t need that, but suppose there’s someone who struggles to sleep and for whatever reason, they find that these sorts of pillowcases greatly improve the situation for them. I’m not going to say “no, you shouldn’t have that!” However, if a person is laxly defining their own needs and they feel upset when someone suggests a general sentiment about excess, then that person’s own mind might be suggesting something to them about the nature of their actual needs, as opposed to what might be a justification for excess.