What are the prospects of learning morse code at 15 WPM at age 45?

Back in various university classes I had to photocopy other students
notes because I couldn't keep up copying and listening at the same time.

Odd, my mom was a courtroom stenographer.

I need to get a class 2 Taiwan licence before my friend will be
willing to transfer his Icom 765 to me, even though I don't plan to
transmit.

Here on linux I've got cwcp - curses-based Morse tutor program, so
I've got a tutor program.

However my dad got Alzheimer's at age 55 and died at 60, so maybe it's
not worth the trouble to learn if there are only 10 golden years left.

My Icom R2 can receive almost the same frequencies but doesn't have
all those modes. I was thinking of listening to ships and planes at sea.

Perhaps just buying a fancier receiver would be a better investment
than putting my brain thru speed tests.