Of course they are pressured into wearing it, everyone gets their kids christened in this country without any knowledge or reason why. I was christened and everyone I know was but I don't believe in god nor a concept of a god yet I am pretty certain my kids will be christened. When I was at school I had to go to church, I wasn't asked, I HAD to go and that continues today in every Catholic/C of E school in the country.
That pressure exists because of the surroundings and environment you get brought up in, it doesn't mean though that those who happen to wear the burqa don't want to and are all quivering wrecks being beaten by their overlord husbands under there or worse... Terrorists. If they wore a dress of roses instead of a black sheet then I'm sure perceptions would change but that isn't so. It is alien to our culture but to them it isn't so we should just let them get on with it and really start worrying about something else.
I certainly wouldn't worry because I bet they enjoy better freedoms and rights here then back in a strict middle east country. At least here bar the family pressures they will have the choice of whether to be Muslim at all. That is the beauty of this country, you have the choice to be, wear or do whatever you fancy and entertaining a ban only sees to erode and remove those freedoms.
Again, It is their religion so we should let them get on with it. Not letting them do so is discriminating for absolutely no reason and if they do happen to be doing something illegal under there it puts them in the same bracket as anyone else, with crime what frock they happen to be wearing is pretty irrelevant. The statistics are fully in favour of the fact that the vast majority of Muslim women wear the burqa and do not cause trouble nor get upto anymore bother then a rough, skinhead English lad does.