That sounds incredibly like "normal" usage! My mother (a grandmother) uses her connection for all those things....
However, maybe you're a kid at college that's wanting to run an FTP server for friends, web server as you're learning to code and run a web server, maybe even email and DNS hosting. So, you'd need at least 1 static IP although a block of 8 would be best along with no traffic shaping. That's what I'd say doesn't constitute normal use!
Adam
Sky Max LLU