The leaders of the three main political parties have stressed the importance of equal marriage reforms, ahead of the 2013 Pride in London parade.
There will be girls and boys in school today who are worried about being bullied and concerned about what society thinks of them because they are gay or lesbian.
By making this change they will be able to see that Parliament believes their love is the same as anyone else's love and that we believe in equality. I think this will enable them to stand that bit taller, be that bit more confident and I am proud of that.
– Prime minister David Cameron
Many straight people have argued for the reform [of equal marriage] with as much passion as gay people. Why? Because this isn't just about technical changes or legal definitions. It isn't just a 'gay issue'. It's about the kind of society we wish to be.
– Deputy Prime Minister Nick Clegg
Labour leader Ed Miliband warned there is "still more to be done" to change attitudes.
Too many young people still fear to come out at school due to bullying. In too many places in the world, it is still a crime to be gay.
Equal marriage reforms will allow gay schoolchildren to "stand a little bit taller", David Cameron said as he heralded the 2013 Pride in London parade.
The Prime Minister told how he hopes youngsters would be able to see that Parliament "believes their love is the same as anyone else's love" as thousands of people prepare to descend on the capital today for the annual gathering.
Organisers expect the parade and festival to be the biggest lesbian, gay, bisexual and transgender event in London over the last decade.