"But as for "tax avoidance = tax doidging" then we all do it. Hands up the forum member whose pension is not in a tax free fund - after all we could save for our retirement without using tax free pension funds. Hands up the member who doesnt have an ISA - certainly you can save in a taxed savings account. Hands up the member who doesnt claim his personal tax allowance.

All these are tax avoidance measures but our attitude to them is different"

I don't accept that as a valid argument. The government chooses not to charge tax on those things. There's no avoidance involved.It does not entail the person paying someone to come up with a legalistic, circuitous route to avoid paying what is demanded, i.e. a tax on income. When you decide to take income from your pension younpay tax on it.
Seems entirely different to me both philosophically and legally.
Nick