Should I not get a snake?

For the past five years I’ve been wanting a snake! More recently I’ve been doing tons of research looking at articles and videos! I have a family member fully willing to buy the snake, its tank and stuff for the tank, and food! This was great news to me because at the moment my mom can’t drop several hundred dollars on a pet since we recently got a new puppy! The problem is my mom’s friend (who knows nothing abt snakes) is saying it’s a horrible idea to get a 350 dollar snake… i do see why but another family member is paying for it…. It’s also a ball python a great beginner snake from what I’ve seen and the person setting everything up and helping me has been taking care of snakes for YEARS… but despite this she says I will kill the snake and it’s a bad idea and I should find a random cheap snake and is even getting her daughter (my bsf) to tell me it’s a bad idea even though my friend is excited for me and told me not to listen to her but now I’m scared the mother is right… is it a good idea to get a snake right now? Also sorry this is so long!