Gloves are a part of PPE and should really only be used when there is a likelihood of exposure to body fluids or mucous membranes. They are to protect you (not the patient) and do not provide 100% protection, hence why you perform hand hygiene after removing them. A ridiculous amount of gloves are used inappropriately, more so since covid - I see staff wearing them to push beds, carry property, dish out food and so on.
Unless there are certain infection control reasons, there’s usually no need to don non-sterile gloves to undertake routine observations.
It’s also worth considering the environmental impact, a trust I used to work at got through 24 million individual gloves a year (this was in 2017).