https://www.bls.gov/ooh/mobile/home.htm
It gives estimates of salary and future demand for pretty much all occupations. Recommend this to your children to help them understand how their major selection could impact their future career.
Computer and Information Technology Occupations:
Computer Programmers: $86,550
Software Developers: $107,510
Web Developers: $73,760
I think the difference in pay is because they state Web Dev requires an associates degree, the other two a bachelor's.
Of course, this data is generalized. I am an SWE, with an associates. I make a little more than their "Software Developer" role. Also suggests there may be a lot of devs who don't respond to salary threads.