Does it though? I often find it's fun to find new and novel ways to create things that are both clear and efficient. Creative problem solving can be leveraged anytime.
I think the problem is you start saying "no" to more things (literally and metaphorically) before you've even worked the idea or given it a shot. This is purely supposition.
That is the gist of it, yeah. You get discouraged because you can't come up with anything interesting, whereas when you were 20 everything you came up with seemed interesting. I'm just generalizing my own experience of course, and there are more things at play than just this - like I think not yet knowing all the rules has something to do with it. I try to be aware of it, and take some advice I heard once at an artist-in-residence talk: sometimes quantity is better than quality. That is, treat making like sports: practice.
> You get discouraged because you can't come up with anything interesting, whereas when you were 20 everything you came up with seemed interesting.
This is so true. I'm 37 now, and I'm struggling with that - I'll come up with a project idea, only to second-guess myself whether it's ambitious or innovative enough, and really worth spending the limited time I have available. I end up questioning whether it would really count, or just serve as frivolous self-entertainment.
When I was younger, it was good enough that ideas were interesting or would help me achieve mastery. Once you have a bunch of well-worn skills under your belt and have plenty of options and the ability to make commitments, everything becomes just a function of effort/time and choosing what to do next becomes the biggest challenge.
I'm trying to cut myself some slack and allow myself some amount of time to pursue frivolous ideas. At least you can intentionally combine them with e.g. new implementation technologies (e.g. a new tech stack or new tools) to get important first-hand experience and maintain relevant skills (and therefore decision freedom).
I'm also hoping that some day, having kids might help me with some of these anxieties :-). If I revisit/retread older ground then perhaps to make it accessible to them at home or teach them by doing little projects together and give them a boost and allow the next generation to take it further. I.e., even doing non-innovative stuff could count, as a fundamentals teaching moment for someone else. Hope they take an interest!
