1. economic restrictions: some people may have financial restrictions and cannot spend too much money on hospitality. In this case, choosing cheap food or drink may be the highest price they can afford.
2. Thrift habit: Some people may have developed the habit of thrift since childhood, and they will think that it is a waste to treat guests to spend too much money. In this case, choosing a cheaper option may be their default choice.
3. Cultural differences: In some cultures, the purpose of entertaining guests is to show friendship and respect, not to show wealth and ability. In this case, choosing cheap food or drink may be an appropriate expression.
4. Don't want to put pressure on the guests: Some people may not want to make the guests feel too burdened, because they may feel embarrassed or embarrassed. Choosing cheap options may make guests feel more relaxed and comfortable.
Whatever the reason, it is important to respect friends' choices and understand their positions. If you are curious or worried about your friends' motives, you can have a frank dialogue with them to understand their thoughts and feelings.