Nintendo e-shop coupon as a birthday present ok?

I have a question. My little brother will be 11 soon and I want to buy him a homemade map and a Nintendo e-shop voucher for 25 euro (He already owns a Nintendo Switch). I do not know well with such things and wanted to ask If such a coupon would be a good gift. And you can also buy games in the e-shop or something else? Need urgent help.

So for somebody like your brother it's definitely the right thing, such a coupon, I would be glad if I was such a Nintendo player now. ^^