Axle Bearing Service - Dos and Dont's???

Trailer: 2011 Keystone 25RS
GVWR: 7500#
Axles, bearings, brakes, etc. have never been serviced. (the way I purchased from original owner)
Mileage: Approx. 10,000

My thoughts on trailer brakes or bearings have never been serviced in 11 years/10k miles.
I've put over a dozen new non rv trailers in service using 3500k up to 11k axles...the same sizes and brand axles used on rv trailers.
Before any new or used trailer was put in service the hubs were pulled all brakes and bearings were R&R and serviced.
Several times we caught a axle with no grease on one end or simply not enough grease for that type of work. Or a brake magnet with no 12v due to various reasons.
Point is don't assume the bearings have grease or even proper amount of grease or the brakes are working just cause the trailer is new or used with just 10k miles.

Comparing trailer bearings/wheels/suspensions/etc vs our truck/car/van/suv same components IMO is apples vs marshmallows.