I think I stir up enough controversies. Talk about real life self defense vs in dojo, it's a huge difference.
For bare hand fights, space is not a huge difference, BUT it's very different if you fight bare foot in level surface in dojo than with shoes in real life environment. In MA, we always learn to keep the feet on the ground, sliding on the floor when moving. BE CAREFUL in real life. I never question this until I had my hip replacement lately where I can start punching and stick fight practice without kicking. I used to practice in the garage with my heavy bags bare footed for kicking. But since I cannot kick after the the hip replacement for a few weeks, I started wearing shoes( sandles) so I don't dirty my feet in the garage. WHAT A BIG DIFFERENCE. I almost trip when I sliding my feet around with shoes. It's a completely different feel with shoes on.
Then I started wearing shoes inside the house to practice. I was tripping left and right, shoes get caught by carpet. I started raising the feet up slightly so I don't trip. BUT still there are accidents that my feet still get caught.
Don't listen to me. Just wear your shoes and practice and see what happen.
So far I am only doing upper body exercise, kicking is completely different with shoes in real environment that you have uneven ground, rough ground on the street. People better practice in real life environment first to determine what technique is useful or not.
This is more important for fighting using a cane. I spend half and half time on bare handed and stick. I research all the style I can find and there is NONE to me that is practical stick defense in real life. The most common ones are Philippine escrima and Irish stick fight. They all use single handed with lighter stick. They gather speed by swinging the stick in big circles to gather speed. This is ABSOLUTELY USELESS IN REAL LIFE where you have people around, furniture and all that get in the way of the swing. Sure they look pretty and unique with the Irish style. I started practicing with one hand until I saw a competition where both people wacked each other stupid from beginning to end. They both still standing at the end. Sure they wear protection, BUT STILL STANDING AFTER BEING HIT LIKE 50 TO 100 TIMES? I dropper the single hand stick since that day.
I ended up using a heavy stick of almost 2lbs, swinging with both hands in very compact swing so I can use it in real life environment. I practice in hallway and in bathroom with confined space and generate power with shorting swing. I learn this from Lamont Glass, one of the founder of this site. Here is the video. Simple, no nonsense, not pretty but it is the only one that is useful in real life.
But this is off the topic here. I just want to stress TO USE COMMON SENSE, THINK ABOUT IT BEFORE BLINDLY FOLLOW ANY TEACHING. THINK SCIENTIFICALLY, NOT TRUST WHAT IS TAUGHT FROM OLDER MASTERS.
I've been practice over 2 years like the video, adding footwork learned from kick boxing to go in and out, left and right together with hitting. Keep it simple, no fancy stuffs. I put more effort in hitting the knees and lower part of the legs as it's harder to block.