6 figure job at 18?

So I’m am currently working as a lube tech at a dealership at 17. I’ve been there I while coming up on a year here soon. Everyone there really likes me and one of the sales men said that he could most likely get me a job up front once I turn 18. It’s surprisingly not commission based although some money can come from sales. I’ve talked to both my parents about it and my mom doesn’t like it but thinks I should take it and then use it the money for college (which I would prefer to do). My dad is completely against it and hates the idea of me becoming a sales men. I wouldn’t want to screw people over though, I would rather make less money than screw someone over. It’s not like I don’t have a great future in front of me I’m all A’s and also great with my hands if an office job doesn’t work out.

I guess my question is would it be stupid to pass this opportunity up? Would be still look at me horribly even if I would rather me take less money for them to have a good deal.