hI Yogaabba
It may not be common but it's certainly not unprecedented to 'become' an alcoholic in your 50s or 60's...sadly it's also not unprecedented for some to return, or feel a pull to return, to drinking after a period, even if that period that may be decades long.
I've seen examples of both things here on SR.
If your facing some huge stressors right now, that might be enough for the obsession to return?
The one thing I think we can all agree is common ground is that this addiction can be relentless.
There's a lot of support here though and I hope to see you around the place