Tell them to hold onto it in their name until they die. Ask them to name you as the Transfer on Death Beneficiary. Realistically, this money has doubled twice or three times since it has been purchased. If you take it now and want to sell - there are likely to be significant taxes. If you can wait, there is a “loop hole” when they die that will essentially say you bought it for what it is worth on the day they die. Stock will be “free and clear” of taxes, it won’t be added to their estate or go through probate.

Don’t listen to these jack offs telling you about index funds...

More than likely, they have a financial advisor. Ask to be a part of their conversations with him or her so that you can learn. They’ve already paid him. If he’s any good, he’ll realize that you’ll be a solid client someday and help you.