In Germany, we have a law that limits contractual capacity of minors: "A contract concluded by the minor without the approval of the legal representative is deemed effective from the outset if the minor effects performance under the contract with means that were made available to the minor for this purpose or for the minor’s free disposition by the legal representative or by a third party with the representative’s approval." (§ 110 German Civil Code). The "means made available to the minor" could e.g. be pocket money. This leads to the situation that minors may not acquire goods that are more expensive than a monthly average sum of pocket money for a certain age (e.g. a 13-year-old receives on average about 26 € per month). In effect, a seller could refuse to sell the good to the minor and would want the minor to bring his parents to buy the good with their consent.
My question: does something like that exist in the USA as well? What if a minor wants to buy e.g. a Playstation 5 without his parents? Will he be able to buy it?
Thanks in advance for helpful responses.