A video produced by the nocirc organisation:
YouTube - Circumcision - Just say NO! Part 1
Care is a lot easier with intact, non-circumcised boys as there is nothing to do. The foreskin is unretractable in infancy so it should be left alone. No cleaning under it or pulling it back is required. Doctors who know about the foreskin advise to leave it alone:
Foreskin care | Kidshealth
Circumcised boys require a lot more care.
Circumcised boys are in discomfort because there is an open wound. This wound can easily become infected. It can also become irritated by ammonia in the urine.
The remaining skin after the foreskin is severed can re-attach to form a skin bridge. Basically it is a whole lot of extra hassle (that usually nobody tells you about). This site shows in graphic detail the terrible consequences that can occur:
Circumcision Complications
There is also likely to be negative psychological effects to circumcision:
Psychological Impact of Circumcision
Circumcision removes a functioning part of the penis. Many circumcised men do not know what they have lost:
The foreskin contains many specialized nerves on it's underside. When the foreskin is moved up and down it is very pleasurable. Circumcised men have lost this ability to masturbate easily as there is no gliding effect. Circumcised men often have to resort to artificial lubrication in masturbation and sex. See here for the function of the foreskin (NSFW - contains pic of penis):
Functions and Mobility of Real Foreskin
Without the foreskin protecting the glans, circumcised men lose further sensitivity. The glans (head of the penis) dries out. It also brushes on underwear causing the skin to toughen. See here for the full damage done (NSFW - contains pic of penis):
How to Identify Circumcision Damage in the Adult Male
There are good reasons to believe that sex is better for the woman as well, if the man has his foreskin intact (NSFW - contains pic of penis):
Purpose of the Foreskin Explained in Pictures, Video & Text
Men in Britain, Ireland, France, Germany and Italy, along with the rest of Europe don't get circumcised and they all do as good if not better than countries where circumcision is more common. So all in all it is best to be as nature intended. No medical association actually recommends non-therapeutic infant circumcision:
Circumcision: A Guide for expectant Parents | Circinfo.org
History: Non-religious circumcision only started in English-speaking countries in the late 1800's. The main reason was to prevent masturbation. More info can be found at this at this site:
History of Circumcision
Rates of circumcision:
Circumcision rates have dropped in the USA to 60%.
Circumcision in the USA
In Canada and Australia the rate has dropped to less than 10%. In Britain the rate is less than 1%. Only 20-25% of the world are circumcised, 2/3 of these are Muslim.
Once it is gone it is gone, so it is wrong to make that decision for someone without their consent.