Why does Kakashi avoid using Rasengan?

Why does Kakashi avoid using Rasengan?

[Scorpion_]

It wasn’t fully developed till he got obitos sharingan and when he lost the eye he created purple lighting

[Liondrama]

More than likely it’s because the Rasengan takes up more Chakra. Naruto has about 4 times the chakra Kakashi has.

[leoleo]

I wonder if Rin would have survived Kakashi's Rasengan

[shadeyfang]

Rasengan is stronger than chidori, doesn’t matter if it’s not fully developed

[kirtanmuni]

Bro didn't boruto create the disappearing Rasengan at like 10 or 12?😂😂