In simple put “No”. Gliders are naturally social animals living in large groups in the wild where being on their own would mean death. You should not keep just one glider.
A single animal often becomes depressed and with that comes illness, over grooming, self-mutilation and sometimes death. Even if you can spend all day with your glider, you cannot sleep in their pouch with them nor play with them in their wheel.
People often remark on the difference in their gliders when they introduce a friend or two.
