I am 15 and I would like to purchase condoms. I am aware that there is no minimal age limit for buying them. But wont the light still go on at walmart if I buy them through self check out? I saw that happen once, this guy was buying Trojan pleasure pack, and yeah. the light went on. So will that happen to me?

You shouldn't have any problems

that person could have been buying something else

like alcohol or cigarettes [in addition to condoms that cause the light went on

there is no age requirement to buy condoms

Yes

Condoms are sometimes a high theft item, which might be what you're talking about. Sometimes they can have a tag that needs to be removed by the cashier or something like that. You should just buy them at a regular register so you won't have to deal with that. It's not a big deal.