anyone will tell you its better to have someone there. my first time i tripped alone and i quite enjoyed it but i did some research and knew what to expect. if you do decide to trip alone i recommend you do the same. put yourself in a situation where there is no way you can get yourself in trouble.
Just start with a lower dose and in a place that is soothing and where you are familiar and feel safe. I have a rule when tripping alone.......... No matter what happens...... Don't get off the couch.
Look man, I did a lot of my trips by myself, including my first.. on many substances actually . DMT, LSD, Shrooms, I've done them with people too, so I'm not being biased If you feel very comfortable by yourself like an introvert would, then by all means go for it. Stay positive and remain curious
I would have to to have someone with me who has tripped before, then go out on my own for the next time, after I get the feel of it. But if you are comfortable doing it by yourself then you go for it. Just do some research and know what you are doing.