is it a good practice to use cat to display or view a file?

IMO, the phrase "good practice" is meaningless here.

Questions of "good practice" are questions about how your work affects other people. (e.g., your co-workers will complain about having to work with you if you work in ways that are strange to them or, if you work in ways that makes their jobs harder.)

But, your co-workers have no reason to know or care what tool you choose when you want to look at a small text file. It doesn't affect anybody but yourself. It's entirely a personal choice.

is it a good practice to use cat to display or view a file?

IMO, it's neither good nor bad.

"Good practice" is whatever makes you more effective as an individual and, what is often more important, it's whatever makes you a more effective member of some team.

Your preference for what tool you use to view short text files is not likely to affect your work or, how you get along with your co-workers.

is it a good practice to use cat to display or view a file?

IMO, the phrase "good practice" is completely meaningless here.

Questions of "good practice" are questions about how your work affects other people. (e.g., your co-workers will complain about having to work with you if you work in ways that are strange to them.)

But, your co-workers have no reason to know or care what tool you choose when you want to look at a small text file. It doesn't affect anybody but yourself. It's entirely a personal choice.

is it a good practice to use cat to display or view a file?

IMO, the phrase "good practice" is meaningless here.

Questions of "good practice" are questions about how your work affects other people. (e.g., your co-workers will complain about having to work with you if you work in ways that are strange to them or, if you work in ways that makes their jobs harder.)

But, your co-workers have no reason to know or care what tool you choose when you want to look at a small text file. It doesn't affect anybody but yourself. It's entirely a personal choice.