My experience in IT:

• 1985: 8086 assembler, MS-DOS, Basic
• 1990: Technical University degree, C, Unix admin
• 1995: C, Unix/Linux admin, TCP/IP networking
• 2000: C, Perl (not much), Linux admin
• 2010: Python, Linux admin
• 2020: Python, Linux admin, (I'm afraid I almost forgot the C language)

(I'm the author of a free open-source Python library "edzed" that has zero users except me.)