It seems you are getting overthinking too much, the lotto outlet doesn't care at all who is the original bettor of the ticket as long as they have the winning combination they are the one who considered as the ticket winner now it's up to them if they will use those to help you if they are relatives or not let's accept the fact once they see a large amount of money and base on your statement you are in an unconscious state you cant fight back at all. I don't see any sense why you need to take so long to hold the ticket number most of the winners are excited to claim their rewards.
Exactly, just because you've won a lot of money in lottery doesn't mean that you're obligated to help out the people that are asking for some of the wins and to share to them your winnings, that's just a construct that was made by other people because they want to make sure that everyone's not envious of you and that they might attempt to steal your winnings. In my country, if you're the outlet that sold the ticket with the winning number combination, you will also get some form of reward so I don't think that they're going to care too much about the winner because they're going to get some anyway.