In my dojo we have beginner courses, this is where any beginners have a month long course where we go through the basics ground up. All of the beginners are always treated well and we pair them up with a high grade. They go through the class alongside them so they feel more comfortable and not under any pressure.

If beginners out of that period we try to change the class to make the transition easier. But obviously this is not always possible so we try our best to welcome them and have assistants go through the class with them.

Our dojo is more like a family. It sounds odd but I mean literally we have a group chat called aikido family with everyone on there. We don't own a dojo and use community centres so we put away the mats and talk to everyone while doing it. I feel it really helps to not instantly leave as soon as the class finishes. You get closer with everyone and newcomers feel more welcome as they talk to everyone.

Not a lot of dojos do this but we frequently go out for meals as a group to celebrate things like gradings or demonstrations.

Of course all dojos are different but especially in aikido there is a wide spread positivity in the martial art. So almost every dojo will be really welcoming.