have both a bmx and a 26 inch dj bike.
The bmx feels amazing when you get it right. It’s very easy to manual, pump etc. It’s also unforgiving, and if you’re used to mtbs and haven’t ridden bmx before, hard to adapt to in my experience.
The dj bike is much more stable, forgiving, and feels more like a mtb. You can also use them for more than just dj and tracks, eg 4x tracks and I even ride mine up the local woods for a change.
This ^^^
yeah, hate to say it but you are too old to start afresh on a 20″ BMX. It will break you unless you’ve done it before.
Bit harsh, It’s not unpossible, but it will take longer to adapt. You can still transfer skills across, if you can ride a track well on a BMX then you’re bike handling skills will definitely benefit.
Depends what you will mainly be riding though, if they are groomed, smooth jump trails with landings almost as steep as the take-offs then get a BMX. if they are lumpy shoddy jumps with landings almost as an afterthought then get a 26″ mtb.
I have a 24″ DJ bike, but it’s different to a cruiser. BMX Cruisers are the worst of both worlds IMO, poor at jumping and not as fun as a 20″.