Ok i actually found out that astra begged people to donate to her cuz she had financial problems, while she was paying lovemaniacs highest tier of their patreon (like 30$ or smth). So technically half of my comment is wrong. it IS your business what astra does with YOUR money if she promises one thing and does the complete opposite.
And what makes things even more stupider is that frisk and Chara are just fictional characters, you can still give the character a story without giving them ages because adding ages to the characters when you think hard enough doesn't really make any sense they're just fictional characters they're not real, they are just fictional, FICTIONAL, look at fucking Sonic cast for example, they USED to have an age, that was until last year Sega decided to get rid of the ages because it wasn't really necessary, also because the timeline wouldn't make sense, if you don't believe me search it up, anyways I'm done rambling now, have a good day.