Why Do Some Folks Feel Entitled to Stuff? Read This:

[haele]

6. Could you perhaps offer to teach her teenager how to use a snowblower?

And allow him to clear the footpaths to the front porch or out off the back porch/deck under your supervision? (He might even clear off the his side of the driveway and city sidewalks in front of his house...)
I know you're a vigorous 72 year old with old man strength (like my grandfather - he worked on his own car, did his own roof repair and could chop firewood up into his mid 90's with no apparent issues), but clearing snow is still tough work, and too many older people have had heart attacks just shoveling two or three inches, let alone a foot of snow with possible drifts. It would be a win/win for them both.
It will give the kid an excuse to do something in the snow outside for an hour or two.
Her win is that it would probably get him out from underfoot in the house.
His win is that he can get out from under her expectations for at least a short duration, and maybe be able to ask for something special after all that hard work...or, he can go around and start a "snow blowing business" in the neighborhood.

Your win is that it would shut down her expectations. And you might be able to rent out your snowblower if he decides it's a good way for extra fun money.

Who knows, you might be able to teach the kid something outside of his immediate comfort zone. He might decide spend the summer borrowing your lawn mower for some more extra money...

Haele

(I'm an old woman who always considers the angles...)