Many routers nowadays have VPNs built in.

I would say it's about as difficult as golfing. Try doing it a few times & maybe you'll hit the ball. Keep at it & you can play the game on a course. Is there a learning curve? Yes, of course. Is it worth it? Yes, of course. Only you get the upside of the effort so nobody is going to do it for you. I mean, unless you pay handsomely for it. In the end...do whatever you feel is appropriate, but getting things that only benefit you w/o effort isn't the world we live in.

If this is beyond the capabilities of a user, maybe that user shouldn’t set up remotely accessible cameras either