A related case is donating to individual needy people (for instance, with a Go Fund Me or giving cash to a person on the street). Sone donors are happy with the receivers buying anything, assuming that the receiver knows their personal situation best, while other donors would want the receivers to use it for a specific purpose. This is especially so for things that seem like vices. If you give a homeless person money and they use it to buy alcohol, many people would be quite upset, while others would trust that they could decide for themself what the optimal way to use the money was.
A related case is donating to individual needy people (for instance, with a Go Fund Me or giving cash to a person on the street). Sone donors are happy with the receivers buying anything, assuming that the receiver knows their personal situation best, while other donors would want the receivers to use it for a specific purpose. This is especially so for things that seem like vices. If you give a homeless person money and they use it to buy alcohol, many people would be quite upset, while others would trust that they could decide for themself what the optimal way to use the money was.