One question I have - since you said "the main reason for him switching " - whereas in the first message you said - “Our son is considering switching”…
is he seeking help from you - i.e. he’s considering and seeking your input? Or he’s decided and you have concern and you are seeking validation for you.
Reason I ask is - I know - a lot of what my kids think or do - I disagree with but in the end, they’re going to do what they’re going to do regardless.
I like that your son has done his research and that there’s logic behind his decisions. Whether his decisions turn out right, none of us know - but at least he’s doing it with purpose and not with the easy way out mentality (that’s my non quant kid and me when I was in school).