To be honest I could make it without any additional income but some income on top of my pension will make it easier and if I’m not working I would be spending more.
If you really don't need money, it opens up a lot more options. Bar tending at the right spot would be a pretty sweet gig to me. A little bit of activity, a little bit of talk, and some untaxed cash in your pocket. But again, that requires the right spot. You don't want (or at least I wouldn't want) to be in a high volume bar. Also don't want to sit in an empty bar. A bar in a resort, a golf course bar, or a high end restaurant bar would be ideal to me. Not slammed busy, but high prices and presumably higher class clientele and a slow and steady stream of orders for the most part. If you were willing to take less busy shifts and be flexible it might not be that hard to get work.
High end restaurants where I live have trouble getting waitstaff that can relate to the clientele. If they had somebody that came from a managerial position, they might be willing to overlook the lack of experience and try to train if they felt like there was a decent chance you'd stick to it for a while. Might be too concerned you'd get bored with it before you got good at it or not be willing to deal with the occasional dickhead customer.
If you'd be interested in working a little more, there is a shortage of good property managers where I live (and I think basically anywhere and always). To make good money, you really have to scale up and it's not a stress free job. But if you just need some money, you can manage fewer doors and not be as stressed. You will still have to take late night calls (or hire somebody to take those calls) and deal with things like evictions, so not right for a lot of personality types. Have to be able to evict somebody and then not have that ruin your day. Biggest problem with this option is if you're good at it, you will quickly have people beating down your door to give you more doors to manage, and if you're not careful, you will have more than a full time job within a few years.