Thinking about buying my newborn kid a single coin for 500 usd and dont look at it for 18 years, which one would you buy?

i want to buy our newborn girl a coin and spend 500 usd and then i dont want to trade it anymore until she is 18 and a notary will give her the wallet and seed phrase (i mean hopefully me, cause i still plan to live then lol). no matter how it pumps or if it crashes, i wont touch it. which coin would u use?

i think there are several points that need attention:

i dont want to touch ethereum or bitcoin, i know it might be the safest bet, and these coins will still exist then i guess, but i want to be a bit riskier.

i already got 3 or 4 in my mind, but i wont tell here cause otherwise people will just think i am shilling and also i dont want to influence you, i just want to see what you guys would buy.

and another thing: 18 years is a long long time. many coins will disappear, many new ones will come, so i wont buy anything not in the top 30 or 50 now and of course no memetoken. new memetokens will replace them soon.

thx for your ideas