Well said. I have been in the industry since '84. I'm 51 and learned very early on to keep abreast of the latest trends and technologies. I started on the maniframe doing COBOL and CICS; was in on the first wave of the move to "PC"'s and OS2/WARP in our company; wrote code in C, C++, VB6, Powerbuilder, REXX; moved on to web development and Perl/CGI, then ASP, javascript, xml, SQL server, and most recently, .Net. I took classes, attended seminars, and made my intentions clear as to where I wanted to be. I also realized that I could learn much from the "youngsters" working alongside me. Keeping my skills sharp has made me immune to the threat of obsolescence.
It's all about the attitude.