Well I've never caught an E-mail virus either but as I said I've seen 'em downloaded to the computer.. just not invoked.
Another advantage of web mail.. I have multiple comptuers 2 working and 2 non working windows (I will fix those) two chrome books An Android smart phone and an Android tablet. With WEB mail all the e-mails are available on all devices.
Usually I do this in TV (Television) Dissuctions but you now those ads for over priced hyper expensive Subscription television services (100+/month in many cases) "Only our service lest you record in one room, watch in another, start watching in one room, finish in another (Stop rewind fast forward) watch on any device anywhere. and so on.
Applies to WEB mail as well. (Save for this part) I can start on this CB. Finish on the othe CB. or my 'droids or Dozers or even visit a library and use their kiosk machine Can't do that with client mail programs.