Say I want to engage in boxing lessons for 3 days a week. Will this be an expensive Endeavour?
You generally get what you pay for - the more the instruction costs, the better its overall quality is likely to be. I don't know what the situation is in the UK, but here in the US, boxing lessons that involve actual ring work have become popular with yuppie corporate types
The serious amateur and professional boxers still tend to come from poor backgrounds, but those with talent are identified and then managed. They don't pay for their lessons.