I'm not an expert, so someone please correct me if I'm wrong, but nothing forces them. The theory was that if they have to spend $X per week, and that number i

I'm not an expert, so someone please correct me if I'm wrong, but nothing forces them. The theory was that if they have to spend $X per week, and that number is higher than what they would gain if they waited Y months, then they'll be "forced" to do it.