Read this story
https://www.mgexp.com/forum/mgb-and-gt-forum.1/back-in-the-family.4317518/ Then buy it. I feel people whose parents owned something interesting are so lucky, my parents never owned anything I wanted to buy back.
The MGB owner lives about 400 metres from me, he came over to show me the car and we had a chat. His two older brothers got to learn to drive in the car and he used to take it out unknown to the rest of the family after school on the odd occasion he thought he wouldn't get caught. His dad sold the car when he was 15, buying it back at 59 was a dream come true. He owns an E-type that he is trying to sell and move house but he said the MG is staying his until he goes.