What does the payment actually provide?
Read the current official description for that exact pass. Some rewards may be available at purchase while others depend on reaching particular progress levels. Identify which items the child actually wants and what conditions apply to them. Do not rely only on the most impressive reward shown in an advertisement. If the terms are unclear, wait until you can explain them. A familiar game title does not make every new offer equivalent to the previous one.
How much play would this require?
Ask the child to describe how progress is earned and compare that with the time your family has already agreed is available. Avoid turning a speculative estimate into a promise that all rewards will be reached. Schoolwork, travel, and other plans can change the number of sessions. Discuss whether the pass would still feel worthwhile if the child stopped playing before the end. This makes the purchase about an acceptable experience rather than a race to recover imagined value.
What happens if we do not finish it?
Agree before paying that the family schedule will not expand automatically to complete the pass. If the child becomes frustrated by unfinished rewards, revisit the purchase decision rather than adding playtime by default. Use the result as information for the next season. A decision not to buy again does not mean the previous enjoyment was wasted. It means your household has learned how that offer fits the time, interest, and money it actually has.